Question

Determine whether the values -2 and 5 are solutions to the quadratic equation below.

x2+3x+2=0


(2 points)
Yes, this is a solution. No, this is not a solution.
x=−2



x=5

Answer 1

x = −2: Yes. (-2)^2 + 3(-2) + 2 = 4 − 6 + 2 = 0.

x = 5: No. 5^2 + 3·5 + 2 = 25 + 15 + 2 = 42 ≠ 0.