(4b-4)(4b+4)=

Solution for (4b-4)(4b+4)= equation:

Simplifying
(4b + -4)(4b + 4) = 0

Reorder the terms:
(-4 + 4b)(4b + 4) = 0

Reorder the terms:
(-4 + 4b)(4 + 4b) = 0

Multiply (-4 + 4b) * (4 + 4b)
(-4(4 + 4b) + 4b * (4 + 4b)) = 0
((4 * -4 + 4b * -4) + 4b * (4 + 4b)) = 0
((-16 + -16b) + 4b * (4 + 4b)) = 0
(-16 + -16b + (4 * 4b + 4b * 4b)) = 0
(-16 + -16b + (16b + 16b2)) = 0

Combine like terms: -16b + 16b = 0
(-16 + 0 + 16b2) = 0
(-16 + 16b2) = 0

Solving
-16 + 16b2 = 0

Solving for variable 'b'.

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

Add '16' to each side of the equation.
-16 + 16 + 16b2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 16b2 = 0 + 16
16b2 = 0 + 16

Combine like terms: 0 + 16 = 16
16b2 = 16

Divide each side by '16'.
b2 = 1

Simplifying
b2 = 1

Take the square root of each side:
b = {-1, 1}