4y^2-13=0

Solution for 4y^2-13=0 equation:

Simplifying
4y2 + -13 = 0

Reorder the terms:
-13 + 4y2 = 0

Solving
-13 + 4y2 = 0

Solving for variable 'y'.

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

Add '13' to each side of the equation.
-13 + 13 + 4y2 = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 4y2 = 0 + 13
4y2 = 0 + 13

Combine like terms: 0 + 13 = 13
4y2 = 13

Divide each side by '4'.
y2 = 3.25

Simplifying
y2 = 3.25

Take the square root of each side:
y = {-1.802775638, 1.802775638}