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Simplifying
x2 + -12 + 20 = 20
Reorder the terms:
-12 + 20 + x2 = 20
Combine like terms: -12 + 20 = 8
8 + x2 = 20
Solving
8 + x2 = 20
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-8' to each side of the equation.
8 + -8 + x2 = 20 + -8
Combine like terms: 8 + -8 = 0
0 + x2 = 20 + -8
x2 = 20 + -8
Combine like terms: 20 + -8 = 12
x2 = 12
Simplifying
x2 = 12
Take the square root of each side:
x = {-3.464101615, 3.464101615}
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