SAT Math Practice Question #39411 - SATify | SATify

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SAT Math Practice Question #39411 - SATify | SATify

#39411

equations

quadratic equations

easy

45 sec

Calculator OK

Which quadratic equation has exactly one real solution?

A.

$x^{2} + 5 x + 6 = 0$

B.

$x^{2} - 6 x + 9 = 0$

C.

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

D.

$2 x^{2} + 3 x - 1 = 0$