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Simplifying
2x2 = 168
Solving
2x2 = 168
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '2'.
x2 = 84
Simplifying
x2 = 84
Take the square root of each side:
x = {-9.16515139, 9.16515139}
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