{"id":"cb_practice_pdf:t7-math-m2-q10","source_id":"cb_practice_pdf","source_item_id":"t7-math-m2-q10","external_id":null,"ibn":null,"question_id":null,"program":"SAT","module":"math","domain_code":null,"domain":null,"skill_code":null,"skill":null,"difficulty":null,"score_band":null,"answer_type":"mcq","answer_source":"rationale","layout_warning":null,"form_id":"cb_practice_pdf:test-7","module_number":2,"position":10,"stem":"Which expression is equivalent to 9x^3 +5x+7 + 6x^3 +5x^2 −5 () ()?","stimulus":"","stimulus_html":null,"stem_html":"<p>Which expression is equivalent to 9x^3 +5x+7 + 6x^3 +5x^2 −5 () ()?</p>","rationale_html":"<p>Choice D is correct. The given expression can be rewritten as 9 3+6 3 +5 2+5 + 7-5 ^ x x h x x ^ h. Combining like terms in this expression yields 15 3+5 2+5 +2 x x x . Choice A is incorrect and may result from conceptual or calculation errors. Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors.</p>","correct_answer":["D"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>15x^6 +5x^2 −5x−35 15x^3 +10x^2 +2</p>","ord":0},{"label":"B","content_html":"<p>15x^6 +5x^2 +5x+2</p>","ord":1},{"label":"C","content_html":"<p>15x^3 +5x^2 +5x+2</p>","ord":2},{"label":"D","content_html":"","ord":3}],"attribution":{"source_id":"cb_practice_pdf","source_name":"College Board full-length SAT practice tests (PDF)","rights_holder":"College Board","canonical_url":"https://satsuite.collegeboard.org/practice/practice-tests/paper","retrieved_from":"https://satsuite.collegeboard.org/practice/practice-tests/paper","attribution":"Full-length SAT practice tests 4–11 © College Board, published free at satsuite.collegeboard.org.","disclaimer":"Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.","license":"College Board copyright. Free to download; not licensed for redistribution.","redistributable":false,"item_count":905}}