Question

Which quadratic equation has roots -7+2i and -7 - 2i?

x² + 14x + 50 = 0
x² 14x + 530
x² + 14x + 53 = 0
x²14x + 50 = 0

Answer 1

x² + 14x + 53 = 0

Explanation:

(x+7-2i)(x+7+2i)=0

x^2+14x+49+4=0

x^2+14x+53=0