(3-2b)(3+2b)=

Solution for (3-2b)(3+2b)= equation:

Simplifying
(3 + -2b)(3 + 2b) = 0

Multiply (3 + -2b) * (3 + 2b)
(3(3 + 2b) + -2b * (3 + 2b)) = 0
((3 * 3 + 2b * 3) + -2b * (3 + 2b)) = 0
((9 + 6b) + -2b * (3 + 2b)) = 0
(9 + 6b + (3 * -2b + 2b * -2b)) = 0
(9 + 6b + (-6b + -4b2)) = 0

Combine like terms: 6b + -6b = 0
(9 + 0 + -4b2) = 0
(9 + -4b2) = 0

Solving
9 + -4b2 = 0

Solving for variable 'b'.

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

Add '-9' to each side of the equation.
9 + -9 + -4b2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -4b2 = 0 + -9
-4b2 = 0 + -9

Combine like terms: 0 + -9 = -9
-4b2 = -9

Divide each side by '-4'.
b2 = 2.25

Simplifying
b2 = 2.25

Take the square root of each side:
b = {-1.5, 1.5}