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Simplifying
4x2 = 91
Solving
4x2 = 91
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '4'.
x2 = 22.75
Simplifying
x2 = 22.75
Take the square root of each side:
x = {-4.769696007, 4.769696007}
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