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Simplifying 81x * x = 4 Multiply x * x 81x2 = 4 Solving 81x2 = 4 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '81'. x2 = 0.04938271605 Simplifying x2 = 0.04938271605 Take the square root of each side: x = {-0.222222222, 0.222222222}
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