SAT Math Practice Question #15185 - SATify | SATify

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SAT Math Practice Question #15185 - SATify | SATify

#15185

algebra

expressions

factoring

medium

75 sec

Which of the following is equivalent to the expression $a^{4} + 2 a^{2} - 15$ ?

A.

$(a^{2} + 15) (a^{2} - 1)$

B.

$(a^{2} + 3) (a^{2} - 5)$

C.

$(a^{2} - 15) (a^{2} + 1)$

D.

$(a^{2} + 5) (a^{2} - 3)$