SAT Math Practice Question #20432 - SATify | SATify

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SAT Math Practice Question #20432 - SATify | SATify

#20432

equations

quadratic equations

hard

180 sec

Calculator OK

Which quadratic equation has exactly one real solution?

A.

$x^{2} + 3 x + 4 = 0$

B.

$9 x^{2} - 24 x + 16 = 0$

C.

$5 x^{2} + 11 x + 2 = 0$

D.

$2 x^{2} - 7 x + 3 = 0$