2y^2-28=0

Solution for 2y^2-28=0 equation:

Simplifying
2y2 + -28 = 0

Reorder the terms:
-28 + 2y2 = 0

Solving
-28 + 2y2 = 0

Solving for variable 'y'.

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

Add '28' to each side of the equation.
-28 + 28 + 2y2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 2y2 = 0 + 28
2y2 = 0 + 28

Combine like terms: 0 + 28 = 28
2y2 = 28

Divide each side by '2'.
y2 = 14

Simplifying
y2 = 14

Take the square root of each side:
y = {-3.741657387, 3.741657387}