2x^2-23=30

Solution for 2x^2-23=30 equation:

Simplifying
2x2 + -23 = 30

Reorder the terms:
-23 + 2x2 = 30

Solving
-23 + 2x2 = 30

Solving for variable 'x'.

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

Add '23' to each side of the equation.
-23 + 23 + 2x2 = 30 + 23

Combine like terms: -23 + 23 = 0
0 + 2x2 = 30 + 23
2x2 = 30 + 23

Combine like terms: 30 + 23 = 53
2x2 = 53

Divide each side by '2'.
x2 = 26.5

Simplifying
x2 = 26.5

Take the square root of each side:
x = {-5.14781507, 5.14781507}