Which of the following is equivalent to the expression above?
A
B
C
D
Correct answer: A
Explanation
Choice A is correct. The given expression can be rewritten as . Applying the distributive property, the expression can be rewritten as , or . Adding like terms yields . Substituting for in the given expression yields . By the rules of exponents, the expression is equivalent to . Applying the distributive property, this expression can be rewritten as , or . Adding like terms gives . Substituting for in the rewritten expression yields , and adding like terms yields .
Choices B, C, and D are incorrect. Choices C and D may result from rewriting the expression as , instead of as . Choices B and C may result from rewriting the expression as , instead of .
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id cb_question_bank:1201ba81-051c-4e6b-915d-400100ae655f · question 42c71eb5 · IBN 025483-DC
· JSON