(3b-1)(3b+1)=

Solution for (3b-1)(3b+1)= equation:

Simplifying
(3b + -1)(3b + 1) = 0

Reorder the terms:
(-1 + 3b)(3b + 1) = 0

Reorder the terms:
(-1 + 3b)(1 + 3b) = 0

Multiply (-1 + 3b) * (1 + 3b)
(-1(1 + 3b) + 3b * (1 + 3b)) = 0
((1 * -1 + 3b * -1) + 3b * (1 + 3b)) = 0
((-1 + -3b) + 3b * (1 + 3b)) = 0
(-1 + -3b + (1 * 3b + 3b * 3b)) = 0
(-1 + -3b + (3b + 9b2)) = 0

Combine like terms: -3b + 3b = 0
(-1 + 0 + 9b2) = 0
(-1 + 9b2) = 0

Solving
-1 + 9b2 = 0

Solving for variable 'b'.

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

Add '1' to each side of the equation.
-1 + 1 + 9b2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 9b2 = 0 + 1
9b2 = 0 + 1

Combine like terms: 0 + 1 = 1
9b2 = 1

Divide each side by '9'.
b2 = 0.1111111111

Simplifying
b2 = 0.1111111111

Take the square root of each side:
b = {-0.333333333, 0.333333333}