(5b+5)(5b-5)=

Solution for (5b+5)(5b-5)= equation:

Simplifying
(5b + 5)(5b + -5) = 0

Reorder the terms:
(5 + 5b)(5b + -5) = 0

Reorder the terms:
(5 + 5b)(-5 + 5b) = 0

Multiply (5 + 5b) * (-5 + 5b)
(5(-5 + 5b) + 5b * (-5 + 5b)) = 0
((-5 * 5 + 5b * 5) + 5b * (-5 + 5b)) = 0
((-25 + 25b) + 5b * (-5 + 5b)) = 0
(-25 + 25b + (-5 * 5b + 5b * 5b)) = 0
(-25 + 25b + (-25b + 25b2)) = 0

Combine like terms: 25b + -25b = 0
(-25 + 0 + 25b2) = 0
(-25 + 25b2) = 0

Solving
-25 + 25b2 = 0

Solving for variable 'b'.

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

Add '25' to each side of the equation.
-25 + 25 + 25b2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 25b2 = 0 + 25
25b2 = 0 + 25

Combine like terms: 0 + 25 = 25
25b2 = 25

Divide each side by '25'.
b2 = 1

Simplifying
b2 = 1

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