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Simplifying
2x2 + -162 = 66
Reorder the terms:
-162 + 2x2 = 66
Solving
-162 + 2x2 = 66
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '162' to each side of the equation.
-162 + 162 + 2x2 = 66 + 162
Combine like terms: -162 + 162 = 0
0 + 2x2 = 66 + 162
2x2 = 66 + 162
Combine like terms: 66 + 162 = 228
2x2 = 228
Divide each side by '2'.
x2 = 114
Simplifying
x2 = 114
Take the square root of each side:
x = {-10.677078252, 10.677078252}
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