x^2-16=4

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Solution for x^2-16=4 equation:


Simplifying
x2 + -16 = 4

Reorder the terms:
-16 + x2 = 4

Solving
-16 + x2 = 4

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 + x2 = 4 + 16

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

Combine like terms: 4 + 16 = 20
x2 = 20

Simplifying
x2 = 20

Take the square root of each side:
x = {-4.472135955, 4.472135955}

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