(2-5y)(2+5y)=

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

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

Multiply (2 + -5y) * (2 + 5y)
(2(2 + 5y) + -5y * (2 + 5y)) = 0
((2 * 2 + 5y * 2) + -5y * (2 + 5y)) = 0
((4 + 10y) + -5y * (2 + 5y)) = 0
(4 + 10y + (2 * -5y + 5y * -5y)) = 0
(4 + 10y + (-10y + -25y2)) = 0

Combine like terms: 10y + -10y = 0
(4 + 0 + -25y2) = 0
(4 + -25y2) = 0

Solving
4 + -25y2 = 0

Solving for variable 'y'.

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

Add '-4' to each side of the equation.
4 + -4 + -25y2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -25y2 = 0 + -4
-25y2 = 0 + -4

Combine like terms: 0 + -4 = -4
-25y2 = -4

Divide each side by '-25'.
y2 = 0.16

Simplifying
y2 = 0.16

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