Math problem plz help me

Question

(x+16)²=12

plz help

Answer 1

(x+16)² = 12

FOIL out the left hand side of the equation:

x² + 32x + 256 = 12

x² + 32x + 244 = 0

Solve by using the quadratic formula.

Answer 2

(x+16)^2 = 12 take the square root of both sides

x+16 = + sqr12 = + or- 2sqr3= about + or - 3.46

x=-16 + or - 2sqr3

= approximately -19.46 or -12.54

check the answer

-19.46 + 16 = -3.46

-12.54 +16 = +3.46

3.46^2 = 11.97, rounded off to nearest tenth = 12.0