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Simplifying (2x) * 3x + 2 = 84 Remove parenthesis around (2x) 2x * 3x + 2 = 84 Reorder the terms for easier multiplication: 2 * 3x * x + 2 = 84 Multiply 2 * 3 6x * x + 2 = 84 Multiply x * x 6x2 + 2 = 84 Reorder the terms: 2 + 6x2 = 84 Solving 2 + 6x2 = 84 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 6x2 = 84 + -2 Combine like terms: 2 + -2 = 0 0 + 6x2 = 84 + -2 6x2 = 84 + -2 Combine like terms: 84 + -2 = 82 6x2 = 82 Divide each side by '6'. x2 = 13.66666667 Simplifying x2 = 13.66666667 Take the square root of each side: x = {-3.696845503, 3.696845503}
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