(2s+6)(2s-6)=

Solution for (2s+6)(2s-6)= equation:

Simplifying
(2s + 6)(2s + -6) = 0

Reorder the terms:
(6 + 2s)(2s + -6) = 0

Reorder the terms:
(6 + 2s)(-6 + 2s) = 0

Multiply (6 + 2s) * (-6 + 2s)
(6(-6 + 2s) + 2s * (-6 + 2s)) = 0
((-6 * 6 + 2s * 6) + 2s * (-6 + 2s)) = 0
((-36 + 12s) + 2s * (-6 + 2s)) = 0
(-36 + 12s + (-6 * 2s + 2s * 2s)) = 0
(-36 + 12s + (-12s + 4s2)) = 0

Combine like terms: 12s + -12s = 0
(-36 + 0 + 4s2) = 0
(-36 + 4s2) = 0

Solving
-36 + 4s2 = 0

Solving for variable 's'.

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

Add '36' to each side of the equation.
-36 + 36 + 4s2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 4s2 = 0 + 36
4s2 = 0 + 36

Combine like terms: 0 + 36 = 36
4s2 = 36

Divide each side by '4'.
s2 = 9

Simplifying
s2 = 9

Take the square root of each side:
s = {-3, 3}