(y+8)(y-8)=0

Solution for (y+8)(y-8)=0 equation:

Simplifying
(y + 8)(y + -8) = 0

Reorder the terms:
(8 + y)(y + -8) = 0

Reorder the terms:
(8 + y)(-8 + y) = 0

Multiply (8 + y) * (-8 + y)
(8(-8 + y) + y(-8 + y)) = 0
((-8 * 8 + y * 8) + y(-8 + y)) = 0
((-64 + 8y) + y(-8 + y)) = 0
(-64 + 8y + (-8 * y + y * y)) = 0
(-64 + 8y + (-8y + y2)) = 0

Combine like terms: 8y + -8y = 0
(-64 + 0 + y2) = 0
(-64 + y2) = 0

Solving
-64 + y2 = 0

Solving for variable 'y'.

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

Add '64' to each side of the equation.
-64 + 64 + y2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + y2 = 0 + 64
y2 = 0 + 64

Combine like terms: 0 + 64 = 64
y2 = 64

Simplifying
y2 = 64

Take the square root of each side:
y = {-8, 8}