(9p+1)(9p-1)=

Solution for (9p+1)(9p-1)= equation:

Simplifying
(9p + 1)(9p + -1) = 0

Reorder the terms:
(1 + 9p)(9p + -1) = 0

Reorder the terms:
(1 + 9p)(-1 + 9p) = 0

Multiply (1 + 9p) * (-1 + 9p)
(1(-1 + 9p) + 9p * (-1 + 9p)) = 0
((-1 * 1 + 9p * 1) + 9p * (-1 + 9p)) = 0
((-1 + 9p) + 9p * (-1 + 9p)) = 0
(-1 + 9p + (-1 * 9p + 9p * 9p)) = 0
(-1 + 9p + (-9p + 81p2)) = 0

Combine like terms: 9p + -9p = 0
(-1 + 0 + 81p2) = 0
(-1 + 81p2) = 0

Solving
-1 + 81p2 = 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 + 81p2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 81p2 = 0 + 1
81p2 = 0 + 1

Combine like terms: 0 + 1 = 1
81p2 = 1

Divide each side by '81'.
p2 = 0.01234567901

Simplifying
p2 = 0.01234567901

Take the square root of each side:
p = {-0.111111111, 0.111111111}