=(M+6)(M-6)

Solution for =(M+6)(M-6) equation:

Simplifying
0 = (M + 6)(M + -6)

Reorder the terms:
0 = (6 + M)(M + -6)

Reorder the terms:
0 = (6 + M)(-6 + M)

Multiply (6 + M) * (-6 + M)
0 = (6(-6 + M) + M(-6 + M))
0 = ((-6 * 6 + M * 6) + M(-6 + M))
0 = ((-36 + 6M) + M(-6 + M))
0 = (-36 + 6M + (-6 * M + M * M))
0 = (-36 + 6M + (-6M + M2))

Combine like terms: 6M + -6M = 0
0 = (-36 + 0 + M2)
0 = (-36 + M2)

Solving
0 = -36 + M2

Solving for variable 'M'.

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

Add '-1M2' to each side of the equation.
0 + -1M2 = -36 + M2 + -1M2
Remove the zero:
-1M2 = -36 + M2 + -1M2

Combine like terms: M2 + -1M2 = 0
-1M2 = -36 + 0
-1M2 = -36

Divide each side by '-1'.
M2 = 36

Simplifying
M2 = 36

Take the square root of each side:
M = {-6, 6}