(5c+5)(5c-5)=

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

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

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

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

Multiply (5 + 5c) * (-5 + 5c)
(5(-5 + 5c) + 5c * (-5 + 5c)) = 0
((-5 * 5 + 5c * 5) + 5c * (-5 + 5c)) = 0
((-25 + 25c) + 5c * (-5 + 5c)) = 0
(-25 + 25c + (-5 * 5c + 5c * 5c)) = 0
(-25 + 25c + (-25c + 25c2)) = 0

Combine like terms: 25c + -25c = 0
(-25 + 0 + 25c2) = 0
(-25 + 25c2) = 0

Solving
-25 + 25c2 = 0

Solving for variable 'c'.

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

Add '25' to each side of the equation.
-25 + 25 + 25c2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 25c2 = 0 + 25
25c2 = 0 + 25

Combine like terms: 0 + 25 = 25
25c2 = 25

Divide each side by '25'.
c2 = 1

Simplifying
c2 = 1

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