2*x^2-30=4

Solution for 2*x^2-30=4 equation:

Simplifying
2x2 + -30 = 4

Reorder the terms:
-30 + 2x2 = 4

Solving
-30 + 2x2 = 4

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 = 4 + 30

Combine like terms: -30 + 30 = 0
0 + 2x2 = 4 + 30
2x2 = 4 + 30

Combine like terms: 4 + 30 = 34
2x2 = 34

Divide each side by '2'.
x2 = 17

Simplifying
x2 = 17

Take the square root of each side:
x = {-4.123105626, 4.123105626}