2x^2-3-27=0

Solution for 2x^2-3-27=0 equation:

Simplifying
2x2 + -3 + -27 = 0

Reorder the terms:
-3 + -27 + 2x2 = 0

Combine like terms: -3 + -27 = -30
-30 + 2x2 = 0

Solving
-30 + 2x2 = 0

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 2x2 = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 2x2 = 0 + 30
2x2 = 0 + 30

Combine like terms: 0 + 30 = 30
2x2 = 30

Divide each side by '2'.
x2 = 15

Simplifying
x2 = 15

Take the square root of each side:
x = {-3.872983346, 3.872983346}