x*x+12=16

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Solution for x*x+12=16 equation: 


Simplifying
x * x + 12 = 16

Multiply x * x
x2 + 12 = 16

Reorder the terms:
12 + x2 = 16

Solving
12 + x2 = 16

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + x2 = 16 + -12

Combine like terms: 12 + -12 = 0
0 + x2 = 16 + -12
x2 = 16 + -12

Combine like terms: 16 + -12 = 4
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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