Question

X^2+16x=13

`{x}^(2) + 16x = 13`

Answer 1

Solve by completing the square:

x² + 16x + 64 = 13 + 64
(x + 8)² = 77
x + 8 = +/- √77

x = - 8 +/- √77

OR

x = - 8 - √77, - 8 + √77