2-2x^2-x^2=0

Solution for 2-2x^2-x^2=0 equation:

Simplifying
2 + -2x2 + -1x2 = 0

Combine like terms: -2x2 + -1x2 = -3x2
2 + -3x2 = 0

Solving
2 + -3x2 = 0

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + -3x2 = 0 + -2

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

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

Divide each side by '-3'.
x2 = 0.6666666667

Simplifying
x2 = 0.6666666667

Take the square root of each side:
x = {-0.816496581, 0.816496581}