(5x+0.2)(5x-0.2)=

Solution for (5x+0.2)(5x-0.2)= equation:

Simplifying
(5x + 0.2)(5x + -0.2) = 0

Reorder the terms:
(0.2 + 5x)(5x + -0.2) = 0

Reorder the terms:
(0.2 + 5x)(-0.2 + 5x) = 0

Multiply (0.2 + 5x) * (-0.2 + 5x)
(0.2(-0.2 + 5x) + 5x * (-0.2 + 5x)) = 0
((-0.2 * 0.2 + 5x * 0.2) + 5x * (-0.2 + 5x)) = 0
((-0.04 + 1x) + 5x * (-0.2 + 5x)) = 0
(-0.04 + 1x + (-0.2 * 5x + 5x * 5x)) = 0
(-0.04 + 1x + (-1x + 25x2)) = 0

Combine like terms: 1x + -1x = 0
(-0.04 + 0 + 25x2) = 0
(-0.04 + 25x2) = 0

Solving
-0.04 + 25x2 = 0

Solving for variable 'x'.

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

Add '0.04' to each side of the equation.
-0.04 + 0.04 + 25x2 = 0 + 0.04

Combine like terms: -0.04 + 0.04 = 0.00
0.00 + 25x2 = 0 + 0.04
25x2 = 0 + 0.04

Combine like terms: 0 + 0.04 = 0.04
25x2 = 0.04

Divide each side by '25'.
x2 = 0.0016

Simplifying
x2 = 0.0016

Take the square root of each side:
x = {-0.04, 0.04}