Question

Which of the following is a solution of x2 + 6x = −22?

−3 ± isquare root of 13
−3 ± isquare root of 52
−6 ± isquare root of 13
−6 ± isquare root of 52

Please answer ASAP with an explanation...

Answer 1

C) 3 - i√13

Explanation:

x² - 6x = -22

x² - 6x + (-6/2)² = -22 + (-6/2)²

x² - 6x + 9 = -22 + 9

(x - 3)(x - 3) = -13

x - 3 = ± √-13

x - 3 = ± i√13

x = 3 ± i√13

x = 3 + i√13 & x = 3 - i√13

Explanation: