x(x+3)=x^2-16

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Solution for x(x+3)=x^2-16 equation:


Simplifying
x(x + 3) = x2 + -16

Reorder the terms:
x(3 + x) = x2 + -16
(3 * x + x * x) = x2 + -16
(3x + x2) = x2 + -16

Reorder the terms:
3x + x2 = -16 + x2

Add '-1x2' to each side of the equation.
3x + x2 + -1x2 = -16 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
3x + 0 = -16 + x2 + -1x2
3x = -16 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
3x = -16 + 0
3x = -16

Solving
3x = -16

Solving for variable 'x'.

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

Divide each side by '3'.
x = -5.333333333

Simplifying
x = -5.333333333

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