Question which-
2.4 Equivalent Expressions - Simplifying polynomials
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Which of the following is equivalent to the expression 
?
A.
B.
C.
D.
Which of the following is equivalent to the expression ?
Hard-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. The term x4 can be factored as 
. Factoring –6 as 
yields values that add to –1, the coefficient of x2 in the expression.
Choices A, C, and D are incorrect and may result from finding factors of –6 that don’t add to the coefficient of x2 in the original expression.
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