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Simplifying
-2x2 + 60 = -20
Reorder the terms:
60 + -2x2 = -20
Solving
60 + -2x2 = -20
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-60' to each side of the equation.
60 + -60 + -2x2 = -20 + -60
Combine like terms: 60 + -60 = 0
0 + -2x2 = -20 + -60
-2x2 = -20 + -60
Combine like terms: -20 + -60 = -80
-2x2 = -80
Divide each side by '-2'.
x2 = 40
Simplifying
x2 = 40
Take the square root of each side:
x = {-6.32455532, 6.32455532}
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