-4x^2-3=-147

Solution for -4x^2-3=-147 equation:

Simplifying
-4x2 + -3 = -147

Reorder the terms:
-3 + -4x2 = -147

Solving
-3 + -4x2 = -147

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + -4x2 = -147 + 3

Combine like terms: -3 + 3 = 0
0 + -4x2 = -147 + 3
-4x2 = -147 + 3

Combine like terms: -147 + 3 = -144
-4x2 = -144

Divide each side by '-4'.
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}