Question which-
Which of the following is equivalent to the expression above?
Which of the following is equivalent to the expression above?
Medium-difficulty · SAT Math · Equivalent Expressions — Simplifying polynomials. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice C is correct. Using the distributive property to multiply the terms in the parentheses yields 
, which is equivalent to 
. Combining like terms results in 
.
Choices A and D are incorrect and may result from conceptual errors when multiplying the terms in the given expression. Choice B is incorrect and may result from adding, instead of multiplying, 
and 
.
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