x^2+2x^2-1296=

Solution for x^2+2x^2-1296= equation:

Simplifying
x2 + 2x2 + -1296 = 0

Reorder the terms:
-1296 + x2 + 2x2 = 0

Combine like terms: x2 + 2x2 = 3x2
-1296 + 3x2 = 0

Solving
-1296 + 3x2 = 0

Solving for variable 'x'.

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

Add '1296' to each side of the equation.
-1296 + 1296 + 3x2 = 0 + 1296

Combine like terms: -1296 + 1296 = 0
0 + 3x2 = 0 + 1296
3x2 = 0 + 1296

Combine like terms: 0 + 1296 = 1296
3x2 = 1296

Divide each side by '3'.
x2 = 432

Simplifying
x2 = 432

Take the square root of each side:
x = {-20.784609691, 20.784609691}