Respuesta :
we have that
x²+ 12x = -5
x²+ 12x = -5
Group terms that contain the same variable, and move the constant to the opposite side of the equation
(x²+ 12x) = -5
Complete
the square. Remember to balance the equation by adding the same constants
to each side
(x²+ 12x+36) = -5+36
Rewrite as perfect squares
(x+6)² = -5+36the answer is
36