(x^2-16)-(x^2-20)=0

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Solution for (x^2-16)-(x^2-20)=0 equation: 


Simplifying
(x2 + -16) + -1(x2 + -20) = 0

Reorder the terms:
(-16 + x2) + -1(x2 + -20) = 0

Remove parenthesis around (-16 + x2)
-16 + x2 + -1(x2 + -20) = 0

Reorder the terms:
-16 + x2 + -1(-20 + x2) = 0
-16 + x2 + (-20 * -1 + x2 * -1) = 0
-16 + x2 + (20 + -1x2) = 0

Reorder the terms:
-16 + 20 + x2 + -1x2 = 0

Combine like terms: -16 + 20 = 4
4 + x2 + -1x2 = 0

Combine like terms: x2 + -1x2 = 0
4 + 0 = 0
4 = 0

Solving
4 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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