Which of the following expressions is equivalent to , for ?
A
B
C
D
Correct answer: D
Explanation
Choice D is correct. Since and , the fraction can be written as . It is given that , so the common factor is not equal to 0. Therefore, the fraction can be further simplified to .
Choice A is incorrect. The expression is not equivalent to because at , as a value of 1 and has a value of 0.
Choice B is incorrect and results from omitting the factor x in the factorization of . Choice C is incorrect and may result from incorrectly factoring as instead of .
SAT® and PSAT/NMSQT® are trademarks registered by the College Board, which is not affiliated with, does not sponsor, and does not endorse this project.
id cb_question_bank:626c66ad-8ea0-4df4-9dbd-ea8aff9020fe · question 22fd3e1f · IBN 09413-DC
· JSON