8=x^2-12

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Solution for 8=x^2-12 equation:


Simplifying
8 = x2 + -12

Reorder the terms:
8 = -12 + x2

Solving
8 = -12 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
8 + -1x2 = -12 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
8 + -1x2 = -12 + 0
8 + -1x2 = -12

Add '-8' to each side of the equation.
8 + -8 + -1x2 = -12 + -8

Combine like terms: 8 + -8 = 0
0 + -1x2 = -12 + -8
-1x2 = -12 + -8

Combine like terms: -12 + -8 = -20
-1x2 = -20

Divide each side by '-1'.
x2 = 20

Simplifying
x2 = 20

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

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