(5b-2)(5b+2)=

Solution for (5b-2)(5b+2)= equation:

Simplifying
(5b + -2)(5b + 2) = 0

Reorder the terms:
(-2 + 5b)(5b + 2) = 0

Reorder the terms:
(-2 + 5b)(2 + 5b) = 0

Multiply (-2 + 5b) * (2 + 5b)
(-2(2 + 5b) + 5b * (2 + 5b)) = 0
((2 * -2 + 5b * -2) + 5b * (2 + 5b)) = 0
((-4 + -10b) + 5b * (2 + 5b)) = 0
(-4 + -10b + (2 * 5b + 5b * 5b)) = 0
(-4 + -10b + (10b + 25b2)) = 0

Combine like terms: -10b + 10b = 0
(-4 + 0 + 25b2) = 0
(-4 + 25b2) = 0

Solving
-4 + 25b2 = 0

Solving for variable 'b'.

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

Add '4' to each side of the equation.
-4 + 4 + 25b2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 25b2 = 0 + 4
25b2 = 0 + 4

Combine like terms: 0 + 4 = 4
25b2 = 4

Divide each side by '25'.
b2 = 0.16

Simplifying
b2 = 0.16

Take the square root of each side:
b = {-0.4, 0.4}