(p-7)*(p+7)=

Solution for (p-7)*(p+7)= equation:

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

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

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

Multiply (-7 + p) * (7 + p)
(-7(7 + p) + p(7 + p)) = 0
((7 * -7 + p * -7) + p(7 + p)) = 0
((-49 + -7p) + p(7 + p)) = 0
(-49 + -7p + (7 * p + p * p)) = 0
(-49 + -7p + (7p + p2)) = 0

Combine like terms: -7p + 7p = 0
(-49 + 0 + p2) = 0
(-49 + p2) = 0

Solving
-49 + p2 = 0

Solving for variable 'p'.

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

Add '49' to each side of the equation.
-49 + 49 + p2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + p2 = 0 + 49
p2 = 0 + 49

Combine like terms: 0 + 49 = 49
p2 = 49

Simplifying
p2 = 49

Take the square root of each side:
p = {-7, 7}