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Simplifying
2x2 + -157 = 85
Reorder the terms:
-157 + 2x2 = 85
Solving
-157 + 2x2 = 85
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '157' to each side of the equation.
-157 + 157 + 2x2 = 85 + 157
Combine like terms: -157 + 157 = 0
0 + 2x2 = 85 + 157
2x2 = 85 + 157
Combine like terms: 85 + 157 = 242
2x2 = 242
Divide each side by '2'.
x2 = 121
Simplifying
x2 = 121
Take the square root of each side:
x = {-11, 11}
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