2x^2+4=30

Solution for 2x^2+4=30 equation:

Simplifying
2x2 + 4 = 30

Reorder the terms:
4 + 2x2 = 30

Solving
4 + 2x2 = 30

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 2x2 = 30 + -4

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

Combine like terms: 30 + -4 = 26
2x2 = 26

Divide each side by '2'.
x2 = 13

Simplifying
x2 = 13

Take the square root of each side:
x = {-3.605551275, 3.605551275}