-3x^2-x^2+3=0

Solution for -3x^2-x^2+3=0 equation:

Simplifying
-3x2 + -1x2 + 3 = 0

Reorder the terms:
3 + -3x2 + -1x2 = 0

Combine like terms: -3x2 + -1x2 = -4x2
3 + -4x2 = 0

Solving
3 + -4x2 = 0

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 = 0 + -3

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

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

Divide each side by '-4'.
x2 = 0.75

Simplifying
x2 = 0.75

Take the square root of each side:
x = {-0.866025404, 0.866025404}