{"id":17503,"date":"2026-05-02T17:55:47","date_gmt":"2026-05-02T11:55:47","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/quadratic-concept-39\/"},"modified":"2026-05-02T17:55:47","modified_gmt":"2026-05-02T11:55:47","slug":"quadratic-concept-39","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/quadratic-concept-39\/","title":{"rendered":"Quadratic Concept 39"},"content":{"rendered":"<p>Find the discriminant of 4x^2 &#8211; 5x + 1 = 0.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>41<\/li>\n<li>19<\/li>\n<li>-9<\/li>\n<li>9<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2705,2712],"subject":[1425],"education_level":[1895],"class_list":["post-17503","mcq","type-mcq","status-publish","hentry","topic-algebra","topic-discriminant","subject-mathematics","education_level-ssc"],"mcq_note":"The discriminant tells us important information about the roots of a quadratic equation. For ax^2 + bx + c = 0, discriminant = b^2 - 4ac. In 4x^2 - 5x + 1 = 0, a = 4, b = -5, and c = 1. Substituting gives (-5)^2 - 4(4)(1) = 9. Therefore, the correct answer is 9.","mcq_options":[{"right":"no","answer":"41"},{"right":"no","answer":"19"},{"right":"no","answer":"-9"},{"right":"yes","answer":"9"}],"multi_answers":"no","subject_terms":[{"id":1425,"title":"Mathematics","slug":"mathematics"}],"topic_terms":[{"id":2705,"title":"Algebra","slug":"algebra"},{"id":2712,"title":"Discriminant","slug":"discriminant"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/17503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/comments?post=17503"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=17503"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=17503"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=17503"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=17503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}