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Simplifying
-2x2 + 62 = -100
Reorder the terms:
62 + -2x2 = -100
Solving
62 + -2x2 = -100
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-62' to each side of the equation.
62 + -62 + -2x2 = -100 + -62
Combine like terms: 62 + -62 = 0
0 + -2x2 = -100 + -62
-2x2 = -100 + -62
Combine like terms: -100 + -62 = -162
-2x2 = -162
Divide each side by '-2'.
x2 = 81
Simplifying
x2 = 81
Take the square root of each side:
x = {-9, 9}
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