(7t-7)(7t+7)=

Solution for (7t-7)(7t+7)= equation:

Simplifying
(7t + -7)(7t + 7) = 0

Reorder the terms:
(-7 + 7t)(7t + 7) = 0

Reorder the terms:
(-7 + 7t)(7 + 7t) = 0

Multiply (-7 + 7t) * (7 + 7t)
(-7(7 + 7t) + 7t * (7 + 7t)) = 0
((7 * -7 + 7t * -7) + 7t * (7 + 7t)) = 0
((-49 + -49t) + 7t * (7 + 7t)) = 0
(-49 + -49t + (7 * 7t + 7t * 7t)) = 0
(-49 + -49t + (49t + 49t2)) = 0

Combine like terms: -49t + 49t = 0
(-49 + 0 + 49t2) = 0
(-49 + 49t2) = 0

Solving
-49 + 49t2 = 0

Solving for variable 't'.

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

Add '49' to each side of the equation.
-49 + 49 + 49t2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 49t2 = 0 + 49
49t2 = 0 + 49

Combine like terms: 0 + 49 = 49
49t2 = 49

Divide each side by '49'.
t2 = 1

Simplifying
t2 = 1

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