SAT Math Practice Question #22566 - SATify | SATify

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SAT Math Practice Question #22566 - SATify | SATify

#22566

quadratic equations

sequences and series

algebra

hard

120 sec

The positive real numbers $a, b, c$ form an arithmetic sequence such that $a \leq b \leq c$ . The quadratic $a x^{2} + b x + c = 0$ has exactly one root. What is this root?

A.

$- 7 - 43$

B.

$- 2 - 3$

C.

$- 1$

D.

$- 2 + 3$

E.

$- 7 + 43$