SAT Math Practice Question #6448 - SATify | SATify

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SAT Math Practice Question #6448 - SATify | SATify

#6448

algebra

quadratic equations

equations

roots

formulas

medium

75 sec

Calculator OK

$- 9 x^{2} + 30 x + c = 0$

In the given equation, c is a constant. The equation has exactly one solution. What is the value of $c$ ?

A.

3

B.

0

C.

-25

D.

-53