{"id":18157,"date":"2026-05-02T22:24:52","date_gmt":"2026-05-02T16:24:52","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/partial-fraction-decomposition-7\/"},"modified":"2026-05-02T22:24:52","modified_gmt":"2026-05-02T16:24:52","slug":"partial-fraction-decomposition-7","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/partial-fraction-decomposition-7\/","title":{"rendered":"Partial Fraction Decomposition 7"},"content":{"rendered":"<p>Decompose (2*x + 4)\/((x + 5)(x + 7)) into partial fractions.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>-3\/(x + 5) + 5\/(x + 7)<\/li>\n<li>-3\/(x + 7) &#8211; 5\/(x + 5)<\/li>\n<li>5\/(x + 5) + -3\/(x + 7)<\/li>\n<li>2\/(x + 5)<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2705],"subject":[1425],"education_level":[1896],"class_list":["post-18157","mcq","type-mcq","status-publish","hentry","topic-algebra","subject-mathematics","education_level-hsc"],"mcq_note":"Because the denominator is a product of two different linear factors, split the fraction into two simpler fractions, one over each factor. Assume A\/(x+5) + B\/(x+7). Combining gives [A(x+7)+B(x+5)]\/[(x+5)(x+7)]. Matching coefficients gives A=-3, B=5. In practice, compare the coefficient of x and the constant term on both sides to find A and B. After A and B are found, place them above their matching denominators to get the partial fraction form.","mcq_options":[{"right":"yes","answer":"-3\/(x + 5) + 5\/(x + 7)"},{"right":"no","answer":"-3\/(x + 7) - 5\/(x + 5)"},{"right":"no","answer":"5\/(x + 5) + -3\/(x + 7)"},{"right":"no","answer":"2\/(x + 5)"}],"multi_answers":"no","subject_terms":[{"id":1425,"title":"Mathematics","slug":"mathematics"}],"topic_terms":[{"id":2705,"title":"Algebra","slug":"algebra"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/18157","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=18157"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=18157"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=18157"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=18157"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=18157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}