3x^2-90=1362

Solution for 3x^2-90=1362 equation:

Simplifying
3x2 + -90 = 1362

Reorder the terms:
-90 + 3x2 = 1362

Solving
-90 + 3x2 = 1362

Solving for variable 'x'.

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

Add '90' to each side of the equation.
-90 + 90 + 3x2 = 1362 + 90

Combine like terms: -90 + 90 = 0
0 + 3x2 = 1362 + 90
3x2 = 1362 + 90

Combine like terms: 1362 + 90 = 1452
3x2 = 1452

Divide each side by '3'.
x2 = 484

Simplifying
x2 = 484

Take the square root of each side:
x = {-22, 22}