{"id":181343,"date":"2025-10-12T17:55:00","date_gmt":"2025-10-12T12:25:00","guid":{"rendered":"https:\/\/www.practicemock.com\/blog\/?p=181343"},"modified":"2025-10-11T18:45:27","modified_gmt":"2025-10-11T13:15:27","slug":"how-to-solve-quadratic-equations-in-rrb-po-exam","status":"publish","type":"post","link":"https:\/\/www.practicemock.com\/blog\/how-to-solve-quadratic-equations-in-rrb-po-exam\/","title":{"rendered":"How to Solve Quadratic Equations in RRB PO Exam?"},"content":{"rendered":"<div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/www.practicemock.com\/blog\/\">Home<\/a><\/span> \u00bb <span><a href=\"https:\/\/www.practicemock.com\/blog\/category\/ibps-rrb-po\/\">IBPS RRB PO<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">How to Solve Quadratic Equations in RRB PO Exam?<\/span><\/span><\/div>\n\n\n<p>IBPS RRB PO exam preparation is going on at full speed. This is the time to tackle challenging topics and practice them. These are topics that require a relaxed mind to understand the concepts more effectively. The quadratic equation is one such topic where you need to understand the logic and practice a few tricks so that you can solve the questions in less than a minute.&nbsp; In this blog, we will decode methods to solve quadratic equations in less time.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.practicemock.com\/ibps-rrb-officer-test-series\/?ref=14551\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Take <\/strong>a<strong> Free Mock Test &amp; Enhance Your Understanding of the Exam Topics<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What is a Quadratic Equation?<\/strong>&nbsp;<\/h2>\n\n\n\n<p>The word <em>quadratic<\/em> comes from the Latin word quadratus, meaning \u201csquare,\u201d because the variable is squared. A <strong>quadratic equation<\/strong> is an algebraic equation of the second degree, meaning the highest power of the variable is 2. It is written in the standard form:<\/p>\n\n\n\n<p>ax<sup>2<\/sup> + bx + c = 0<\/p>\n\n\n\n<p>where <strong>a, b, c<\/strong> are real numbers and <strong>a \u2260 0<\/strong> <strong>a, b, c<\/strong> are constants (numbers), x is the variable, and the solutions of this equation are called roots. In the equation, <strong>a<\/strong> is called the quadratic coefficient (it must not be zero, otherwise the equation becomes linear).&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to solve Quadratic Equation in RRB PO Exam?<\/strong><\/h2>\n\n\n\n<p>In this section, we are going to decode the method to solve quadratic equations in RRB PO Exam.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Factorization Method<\/strong>&nbsp;<\/h3>\n\n\n\n<p>It is the most common and quickest method of solving a quadratic equation is the factorisation method. Here are the steps to follow-<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Multiply <strong>a \u00d7 c<\/strong>&nbsp;<\/li>\n\n\n\n<li>Find two numbers whose product = a \u00d7 c and sum = b<\/li>\n\n\n\n<li>Split the middle term and factorise<\/li>\n<\/ol>\n\n\n\n<p>Example:<br>x<sup>2<\/sup> + 7x + 12 = 0<br>By applying the steps a=1 b=7 and =12.<\/p>\n\n\n\n<p>a <strong>\u00d7 c = 1\u00d712 =12, sum = 7 as sum = b&nbsp;<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Product = 12, Sum = 7<\/li>\n\n\n\n<li>Numbers = 3 and 4<\/li>\n\n\n\n<li>Roots = -3, -4<\/li>\n<\/ul>\n\n\n\n<p><strong>Quadratic Formula<\/strong><\/p>\n\n\n\n<p>If factorisation is not possible, then use this method. It is slightly longer but guarantees the answer. Use the formula given in the image.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"154\" height=\"52\" src=\"https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-11-174329.png\" alt=\"quadratic equation formula\" class=\"wp-image-181463\"\/><\/figure>\n\n\n\n<p>Example: 2x<sup>2<\/sup> + 3x &#8211; 2 = 0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>a = 2, b = 3, c = -2<\/li>\n\n\n\n<li>Discriminant = b\u00b2 &#8211; 4ac = 9 &#8211; (4\u00d72\u00d7-2) = 25<\/li>\n\n\n\n<li>Roots = (-3 \u00b1 5)\/4 \u2192 (-8\/4, 2\/4) \u2192 -2, 0.5<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Completing the Square<\/strong><\/h3>\n\n\n\n<p>This method is less common in exams but helps in understanding.<\/p>\n\n\n\n<p>Example: x<sup>2 <\/sup>+ 6x + 5 = 0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Move constant: x<sup>2<\/sup> + 6x = -5<\/li>\n\n\n\n<li>Add (b\/2)\u00b2 = 9 both sides: x<sup>2<\/sup> + 6x + 9 = 4<\/li>\n\n\n\n<li>Now: (x+3)<sup>2<\/sup> = 4<\/li>\n\n\n\n<li>Roots = -3 \u00b1 2 \u2192 (-1, -5)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>RRB PO Special \u2013 Comparing Roots<\/strong><\/h3>\n\n\n\n<p>In the RRB PO exam, you\u2019ll often get <strong>two quadratic equations<\/strong> and must compare x and y.<\/p>\n\n\n\n<p>Example:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>x<sup>2<\/sup> + 7x + 12 = 0<\/li>\n\n\n\n<li>y<sup>2<\/sup> + 9y + 20 = 0<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Roots of (1): -3, -4<\/li>\n\n\n\n<li>Roots of (2): -4, -5<\/li>\n<\/ul>\n\n\n\n<p>Now compare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>-3 \u2265 -4 and -4 \u2265 -5 \u2192 So, <strong>x \u2265 y<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Shortcut:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sum of roots = -b\/a<\/strong><\/li>\n\n\n\n<li><strong>Product of roots = c\/a<\/strong><strong><br><\/strong> These help you estimate the range of roots without solving fully.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Download RRB PO Quadratic Equation Question PDF<\/h2>\n\n\n\n<p>In this section, we are providing RRB PO quadratic equation question PDF. Solve questions using the methods described above. Try to use a timer while solving questions for better practice.<\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/www.practicemock.com\/ibps-rrb-officer-test-series\/?next=https%3A%2F%2Fs1.practicemock.com%2Fexams%2F%3Fc%3Ddashboard%26i%3Dbanking%26dl%3Dhttps%3A%2F%2Fwww.practicemock.com%2Fpricing%2Fmarketing%2Ffiles%2Fpdf%2Fquadratic-equation-questions-for-rrb-po.pdf&amp;ref=14551\" target=\"_blank\" rel=\"noreferrer noopener\">Download RRB PO Quadratic Equation Question PDF<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Time-Saving Tricks for Exams<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If <strong>c is positive<\/strong> and <strong>b is positive<\/strong>, both roots are negative.&nbsp;<\/li>\n\n\n\n<li>If <strong>c is positive<\/strong> and <strong>b is negative<\/strong>, both roots are positive.<\/li>\n\n\n\n<li>If <strong>c is negative<\/strong>, the roots will have opposite signs.<\/li>\n\n\n\n<li>Use these sign rules to eliminate options quickly in the exam.&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Practice Strategy<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Start with easy factorisation problems to build confidence. In the beginning, your focus should be on solving a single question under 40-50 seconds. Always try factorisation first, it\u2019s the fastest method to solve&nbsp;<\/li>\n\n\n\n<li>If stuck, then use the quadratic formula. Don\u2019t panic if numbers look big; apply the formula calmly. After getting comfortable with factorisation one, move to mixed problems where you must compare roots.&nbsp;<\/li>\n\n\n\n<li>Finally, practice mock tests to simulate exam speed.&nbsp; Quadratic equations are <strong>high-scoring<\/strong>. With practice, they can become your strongest area.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>Quadratic equations in the RRB PO exam are not about memorising formulas; they\u2019re about recognising patterns and applying the right method quickly. With consistent practice, you\u2019ll be able to solve them in seconds and secure marks. To practice more such topic-wise questions, you can take our test series, where you can get such topic-wise tests that are designed as per the exam pattern by our experts after analysing previous year papers.&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.practicemock.com\/ibps-rrb-officer-test-series\/?ref=14551\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Take <\/strong>a<strong> Free Mock Test &amp; Enhance Your Understanding of the Exam Topics<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-d0e0a3a8-b69d-4092-97bd-1714f1a5d058\"><em><strong>Join our exclusive Telegram group where our experts are ready to answer all your queries, guide you in banking exam preparation, and give personalised tips to boost your success. Get access to real-time solutions, expert advice, and valuable resources to improve your study journey. [Click here to join now<\/strong><\/em><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-red-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/t.me\/bankgovtjobexamprep\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PracticeMock Telegram group Link<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.practicemock.com\/?next=https%3A%2F%2Fwww.practicemock.com%2Fs1pricing%2Findex.php%3Fc%3Dpremium&amp;ref=14535\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Start More Preparation Banking Exam With PracticeMock<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IBPS RRB PO 2025 Related Link<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/ibps-rrb-po\/ibps-rrb-po-salary\/\" target=\"_blank\" rel=\"noreferrer noopener\">IBPS RRB PO Salary<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/ibps-rrb-po\/ibps-rrb-po-exam-pattern\/\" target=\"_blank\" rel=\"noreferrer noopener\">IBPS RRB PO Exam Pattern<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/ibps-rrb-po\/ibps-rrb-po-cut-off\/\" target=\"_blank\" rel=\"noreferrer noopener\">IBPS RRB PO Cut Off<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/ibps-rrb-po-previous-year-question-paper\/\" target=\"_blank\" rel=\"noreferrer noopener\">IBPS RRB PO Previous Year Question Papers<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.practicemock.com\/?next=https%3A%2F%2Fwww.practicemock.com%2Fs1pricing%2Findex.php%3Fc%3Dpremium&amp;ref=14551\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1141\" height=\"629\" src=\"https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/08\/New-Banking-Packages-Banner-23.png\" alt=\"\" class=\"wp-image-170512\"\/><\/a><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQs<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1760181359758\"><strong class=\"schema-faq-question\">How many questions are asked from Quadratic Equations in RRB PO Prelims?<\/strong> <p class=\"schema-faq-answer\">Generally, 5 questions are asked on this topic in the Quantitative Aptitude section.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1760184668250\"><strong class=\"schema-faq-question\">What is the best method to solve quadratic equations quickly?<\/strong> <p class=\"schema-faq-answer\">The factorisation method is the fastest and most preferred approach for RRB PO, as equations are designed for easy splitting.<\/p> <\/div> <\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understand how to solve quadratic equations and download a PDF for practising questions to get better results in the examination. <\/p>\n","protected":false},"author":33,"featured_media":181466,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-181343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ibps-rrb-po"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Solve Quadratic Equations in RRB PO Exam?<\/title>\n<meta name=\"description\" content=\"Understand how to solve quadratic equations and download a PDF for practising questions to get better results in the examination.\" \/>\n<meta name=\"robots\" content=\"index, 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Having prepared for exams like SBI PO, Clerk, and other banking and insurance exams, I understand the mindset, challenges, and strategies needed to crack them. My journey from exam halls to content creation is fueled by a deep curiosity and an unquenchable thirst for learning. 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