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Simplifying (2x)(2x) = 144 Remove parenthesis around (2x) 2x(2x) = 144 Remove parenthesis around (2x) 2x * 2x = 144 Reorder the terms for easier multiplication: 2 * 2x * x = 144 Multiply 2 * 2 4x * x = 144 Multiply x * x 4x2 = 144 Solving 4x2 = 144 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '4'. x2 = 36 Simplifying x2 = 36 Take the square root of each side: x = {-6, 6}
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