Question

$p(x) = 2x ^ 2 + 4x - 6$ is a polynomial For what number of x, is p(x) = 0 ?

• A. 3
• B. 2
• C. -2
• D. -3

Answer 1

Answer:

D. -3

$p(x) = 2x ^ 2 + 4x - 6$

$p(-3)=2(-3^2)+4(-3)-6$

$=18-12-6$

$=0$