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Simplifying 13 + -5x(x + x) = 140 Combine like terms: x + x = 2x 13 + -5x(2x) = 140 Remove parenthesis around (2x) 13 + -5x * 2x = 140 Reorder the terms for easier multiplication: 13 + -5 * 2x * x = 140 Multiply -5 * 2 13 + -10x * x = 140 Multiply x * x 13 + -10x2 = 140 Solving 13 + -10x2 = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + -10x2 = 140 + -13 Combine like terms: 13 + -13 = 0 0 + -10x2 = 140 + -13 -10x2 = 140 + -13 Combine like terms: 140 + -13 = 127 -10x2 = 127 Divide each side by '-10'. x2 = -12.7 Simplifying x2 = -12.7 Reorder the terms: 12.7 + x2 = -12.7 + 12.7 Combine like terms: -12.7 + 12.7 = 0.0 12.7 + x2 = 0.0 The solution to this equation could not be determined.
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