(5+2x)(5-2x)=0

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Solution for (5+2x)(5-2x)=0 equation: 


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

Multiply (5 + 2x) * (5 + -2x)
(5(5 + -2x) + 2x * (5 + -2x)) = 0
((5 * 5 + -2x * 5) + 2x * (5 + -2x)) = 0
((25 + -10x) + 2x * (5 + -2x)) = 0
(25 + -10x + (5 * 2x + -2x * 2x)) = 0
(25 + -10x + (10x + -4x2)) = 0

Combine like terms: -10x + 10x = 0
(25 + 0 + -4x2) = 0
(25 + -4x2) = 0

Solving
25 + -4x2 = 0

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + -4x2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -4x2 = 0 + -25
-4x2 = 0 + -25

Combine like terms: 0 + -25 = -25
-4x2 = -25

Divide each side by '-4'.
x2 = 6.25

Simplifying
x2 = 6.25

Take the square root of each side:
x = {-2.5, 2.5}

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