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Simplifying (4x) * x = 210 Remove parenthesis around (4x) 4x * x = 210 Multiply x * x 4x2 = 210 Solving 4x2 = 210 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '4'. x2 = 52.5 Simplifying x2 = 52.5 Take the square root of each side: x = {-7.245688373, 7.245688373}
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