2x^2+7-30=0

Solution for 2x^2+7-30=0 equation:

Simplifying
2x2 + 7 + -30 = 0

Reorder the terms:
7 + -30 + 2x2 = 0

Combine like terms: 7 + -30 = -23
-23 + 2x2 = 0

Solving
-23 + 2x2 = 0

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 = 0 + 23

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

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

Divide each side by '2'.
x2 = 11.5

Simplifying
x2 = 11.5

Take the square root of each side:
x = {-3.391164992, 3.391164992}