2y^2+4=30

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

Simplifying
2y2 + 4 = 30

Reorder the terms:
4 + 2y2 = 30

Solving
4 + 2y2 = 30

Solving for variable 'y'.

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

Add '-4' to each side of the equation.
4 + -4 + 2y2 = 30 + -4

Combine like terms: 4 + -4 = 0
0 + 2y2 = 30 + -4
2y2 = 30 + -4

Combine like terms: 30 + -4 = 26
2y2 = 26

Divide each side by '2'.
y2 = 13

Simplifying
y2 = 13

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