576=2x^2+x^2

Solution for 576=2x^2+x^2 equation:

Simplifying
576 = 2x2 + x2

Combine like terms: 2x2 + x2 = 3x2
576 = 3x2

Solving
576 = 3x2

Solving for variable 'x'.

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

Add '-3x2' to each side of the equation.
576 + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
576 + -3x2 = 0

Add '-576' to each side of the equation.
576 + -576 + -3x2 = 0 + -576

Combine like terms: 576 + -576 = 0
0 + -3x2 = 0 + -576
-3x2 = 0 + -576

Combine like terms: 0 + -576 = -576
-3x2 = -576

Divide each side by '-3'.
x2 = 192

Simplifying
x2 = 192

Take the square root of each side:
x = {-13.856406461, 13.856406461}