{"id":18385,"date":"2026-05-03T04:27:08","date_gmt":"2026-05-02T22:27:08","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/radical-equation-exact-solution-15\/"},"modified":"2026-05-03T04:27:08","modified_gmt":"2026-05-02T22:27:08","slug":"radical-equation-exact-solution-15","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/radical-equation-exact-solution-15\/","title":{"rendered":"Radical Equation Exact Solution 15"},"content":{"rendered":"<p>Solve \u221a(x + 2) = 10.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>98<\/li>\n<li>8<\/li>\n<li>102<\/li>\n<li>-98<\/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-18385","mcq","type-mcq","status-publish","hentry","topic-algebra","subject-mathematics","education_level-hsc"],"mcq_note":"Start by remembering that the square root symbol gives the non-negative root. The equation says that \u221a(x + 2) is 10. To remove the square root, square both sides: x + 2 = 10\u00b2 = 100. Now isolate x by moving the constant to the other side, so x = 100 - 2 = 98. Always check radical equations: substituting x = 98 makes the expression inside the root equal to 100, and \u221a100 = 10. So the correct answer is 98.","mcq_options":[{"right":"yes","answer":"98"},{"right":"no","answer":"8"},{"right":"no","answer":"102"},{"right":"no","answer":"-98"}],"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\/18385","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=18385"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=18385"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=18385"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=18385"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=18385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}