Question which-
2.4 Equivalent Expressions - Simplifying polynomials
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Which of the following expressions is equivalent to 
?
A.
B.
C.
D.
Which of the following expressions is equivalent to ?
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 B is correct. Applying the distributive property to the given expression yields 
, or 
. Adding the like terms 
and 2 results in the expression .
Choice A is incorrect and may result from multiplying 
by 2 without multiplying 
by 2 when applying the distributive property. Choices C and D are incorrect and may result from computational or conceptual errors.
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