sat math question

[William]

If , which of the following is the value of ?

(A) 0
(B) 1
(C) 2
(D) 3

Thanks!

[Thomas]

First solve the quadratic equation



and then plug in this value to the expression

Therefore the correct answer is (A).

[William]

First solve the quadratic equation



and then plug in this value to the expression

Therefore the correct answer is (A).

Thank you!