{"id":17791,"date":"2026-05-02T19:25:11","date_gmt":"2026-05-02T13:25:11","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/logarithmic-equation-solution-12\/"},"modified":"2026-05-02T19:25:11","modified_gmt":"2026-05-02T13:25:11","slug":"logarithmic-equation-solution-12","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/logarithmic-equation-solution-12\/","title":{"rendered":"Logarithmic Equation Solution 12"},"content":{"rendered":"<p>Solve log_10(x + 8) = 5 for x.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>100000<\/li>\n<li>99992<\/li>\n<li>9992<\/li>\n<li>42<\/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-17791","mcq","type-mcq","status-publish","hentry","topic-algebra","subject-mathematics","education_level-hsc"],"mcq_note":"Convert the logarithmic equation into exponential form. The statement log_10(x + 8) = 5 means x + 8 = 10^5. Now calculate 10^5 = 100000, so x + 8 = 100000. Subtract 8 from both sides: x = 100000 - 8 = 99992. Finally, check the domain: x + 8 must be positive, and 99992 + 8 = 100000 &gt; 0, so the answer is valid.","mcq_options":[{"right":"no","answer":"100000"},{"right":"yes","answer":"99992"},{"right":"no","answer":"9992"},{"right":"no","answer":"42"}],"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\/17791","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=17791"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=17791"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=17791"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=17791"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=17791"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}