(p+1)(p-1)=

Solution for (p+1)(p-1)= equation:

Simplifying
(p + 1)(p + -1) = 0

Reorder the terms:
(1 + p)(p + -1) = 0

Reorder the terms:
(1 + p)(-1 + p) = 0

Multiply (1 + p) * (-1 + p)
(1(-1 + p) + p(-1 + p)) = 0
((-1 * 1 + p * 1) + p(-1 + p)) = 0
((-1 + 1p) + p(-1 + p)) = 0
(-1 + 1p + (-1 * p + p * p)) = 0
(-1 + 1p + (-1p + p2)) = 0

Combine like terms: 1p + -1p = 0
(-1 + 0 + p2) = 0
(-1 + p2) = 0

Solving
-1 + p2 = 0

Solving for variable 'p'.

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

Add '1' to each side of the equation.
-1 + 1 + p2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + p2 = 0 + 1
p2 = 0 + 1

Combine like terms: 0 + 1 = 1
p2 = 1

Simplifying
p2 = 1

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