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Simplifying (7x)(x) = 450 Remove parenthesis around (7x) 7x(x) = 450 Multiply x * x 7x2 = 450 Solving 7x2 = 450 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '7'. x2 = 64.28571429 Simplifying x2 = 64.28571429 Take the square root of each side: x = {-8.017837258, 8.017837258}
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