SAT Math Practice Question #20445 - SATify | SATify

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SAT Math Practice Question #20445 - SATify | SATify

#20445

algebra

expressions

medium

120 sec

Which expression is equivalent to $(x^{2} - 4)^{2} + (2 x - 1) (2 x + 1)$ ?

A.

$x^{4} - 12 x^{2} + 15$

B.

$x^{4} - 4 x^{2} + 15$

C.

$x^{4} - 4 x^{2} + 17$

D.

$x^{4} + 4 x^{2} + 15$