-75+72=-3x^2

Solution for -75+72=-3x^2 equation:

Simplifying
-75 + 72 = -3x2

Combine like terms: -75 + 72 = -3
-3 = -3x2

Solving
-3 = -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.
-3 + 3x2 = -3x2 + 3x2

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

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

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

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

Divide each side by '3'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}