SAT Math Practice Question #38110 - SATify | SATify

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SAT Math Practice Question #38110 - SATify | SATify

#38110

equations

functions

hard

90 sec

Calculator OK

The function $p$ is defined by $p (x) = 2 x^{2} - 5$ . For what positive value of $x$ does $p (x) = 45$ ?

A.

3

B.

4

C.

5

D.

6