2x^2-27=243

Solution for 2x^2-27=243 equation:

Simplifying
2x2 + -27 = 243

Reorder the terms:
-27 + 2x2 = 243

Solving
-27 + 2x2 = 243

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + 2x2 = 243 + 27

Combine like terms: -27 + 27 = 0
0 + 2x2 = 243 + 27
2x2 = 243 + 27

Combine like terms: 243 + 27 = 270
2x2 = 270

Divide each side by '2'.
x2 = 135

Simplifying
x2 = 135

Take the square root of each side:
x = {-11.618950039, 11.618950039}