x^2+12x^2-64=0

Solution for x^2+12x^2-64=0 equation:

Simplifying
x2 + 12x2 + -64 = 0

Reorder the terms:
-64 + x2 + 12x2 = 0

Combine like terms: x2 + 12x2 = 13x2
-64 + 13x2 = 0

Solving
-64 + 13x2 = 0

Solving for variable 'x'.

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

Add '64' to each side of the equation.
-64 + 64 + 13x2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 13x2 = 0 + 64
13x2 = 0 + 64

Combine like terms: 0 + 64 = 64
13x2 = 64

Divide each side by '13'.
x2 = 4.923076923

Simplifying
x2 = 4.923076923

Take the square root of each side:
x = {-2.218800785, 2.218800785}