(1-8r)(1+8r)=

Solution for (1-8r)(1+8r)= equation:

Simplifying
(1 + -8r)(1 + 8r) = 0

Multiply (1 + -8r) * (1 + 8r)
(1(1 + 8r) + -8r * (1 + 8r)) = 0
((1 * 1 + 8r * 1) + -8r * (1 + 8r)) = 0
((1 + 8r) + -8r * (1 + 8r)) = 0
(1 + 8r + (1 * -8r + 8r * -8r)) = 0
(1 + 8r + (-8r + -64r2)) = 0

Combine like terms: 8r + -8r = 0
(1 + 0 + -64r2) = 0
(1 + -64r2) = 0

Solving
1 + -64r2 = 0

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + -64r2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -64r2 = 0 + -1
-64r2 = 0 + -1

Combine like terms: 0 + -1 = -1
-64r2 = -1

Divide each side by '-64'.
r2 = 0.015625

Simplifying
r2 = 0.015625

Take the square root of each side:
r = {-0.125, 0.125}