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

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


Simplifying
x(x + -2) + -1(x2 + 16) = 0

Reorder the terms:
x(-2 + x) + -1(x2 + 16) = 0
(-2 * x + x * x) + -1(x2 + 16) = 0
(-2x + x2) + -1(x2 + 16) = 0

Reorder the terms:
-2x + x2 + -1(16 + x2) = 0
-2x + x2 + (16 * -1 + x2 * -1) = 0
-2x + x2 + (-16 + -1x2) = 0

Reorder the terms:
-16 + -2x + x2 + -1x2 = 0

Combine like terms: x2 + -1x2 = 0
-16 + -2x + 0 = 0
-16 + -2x = 0

Solving
-16 + -2x = 0

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + -2x = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -2x = 0 + 16
-2x = 0 + 16

Combine like terms: 0 + 16 = 16
-2x = 16

Divide each side by '-2'.
x = -8

Simplifying
x = -8

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