{"id":17392,"date":"2026-05-02T16:58:34","date_gmt":"2026-05-02T10:58:34","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/algebraic-identity-expansion-3\/"},"modified":"2026-05-02T16:58:34","modified_gmt":"2026-05-02T10:58:34","slug":"algebraic-identity-expansion-3","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/algebraic-identity-expansion-3\/","title":{"rendered":"Algebraic Identity Expansion 3"},"content":{"rendered":"<p>Use identity to expand: (7x + 9)(7x &#8211; 9).<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>49x^2 + 81<\/li>\n<li>49x^2 &#8211; 81<\/li>\n<li>49x^2 &#8211; 126x &#8211; 81<\/li>\n<li>49x^2 + 126x &#8211; 81<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2705,2708,2709],"subject":[1425],"education_level":[1895],"class_list":["post-17392","mcq","type-mcq","status-publish","hentry","topic-algebra","topic-algebraic-identities","topic-expansion","subject-mathematics","education_level-ssc"],"mcq_note":"Apply the standard identity carefully. The simplified form is 49x^2 - 81.","mcq_options":[{"right":"no","answer":"49x^2 + 81"},{"right":"yes","answer":"49x^2 - 81"},{"right":"no","answer":"49x^2 - 126x - 81"},{"right":"no","answer":"49x^2 + 126x - 81"}],"multi_answers":"no","subject_terms":[{"id":1425,"title":"Mathematics","slug":"mathematics"}],"topic_terms":[{"id":2705,"title":"Algebra","slug":"algebra"},{"id":2708,"title":"Algebraic Identities","slug":"algebraic-identities"},{"id":2709,"title":"Expansion","slug":"expansion"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/17392","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=17392"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=17392"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=17392"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=17392"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=17392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}