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Simplifying -4(3 + -2x) * 2x = 2x + -8 Reorder the terms for easier multiplication: -4 * 2x(3 + -2x) = 2x + -8 Multiply -4 * 2 -8x(3 + -2x) = 2x + -8 (3 * -8x + -2x * -8x) = 2x + -8 (-24x + 16x2) = 2x + -8 Reorder the terms: -24x + 16x2 = -8 + 2x Solving -24x + 16x2 = -8 + 2x Solving for variable 'x'. Reorder the terms: 8 + -24x + -2x + 16x2 = -8 + 2x + 8 + -2x Combine like terms: -24x + -2x = -26x 8 + -26x + 16x2 = -8 + 2x + 8 + -2x Reorder the terms: 8 + -26x + 16x2 = -8 + 8 + 2x + -2x Combine like terms: -8 + 8 = 0 8 + -26x + 16x2 = 0 + 2x + -2x 8 + -26x + 16x2 = 2x + -2x Combine like terms: 2x + -2x = 0 8 + -26x + 16x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(4 + -13x + 8x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(4 + -13x + 8x2)' equal to zero and attempt to solve: Simplifying 4 + -13x + 8x2 = 0 Solving 4 + -13x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 0.5 + -1.625x + x2 = 0 Move the constant term to the right: Add '-0.5' to each side of the equation. 0.5 + -1.625x + -0.5 + x2 = 0 + -0.5 Reorder the terms: 0.5 + -0.5 + -1.625x + x2 = 0 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + -1.625x + x2 = 0 + -0.5 -1.625x + x2 = 0 + -0.5 Combine like terms: 0 + -0.5 = -0.5 -1.625x + x2 = -0.5 The x term is -1.625x. Take half its coefficient (-0.8125). Square it (0.66015625) and add it to both sides. Add '0.66015625' to each side of the equation. -1.625x + 0.66015625 + x2 = -0.5 + 0.66015625 Reorder the terms: 0.66015625 + -1.625x + x2 = -0.5 + 0.66015625 Combine like terms: -0.5 + 0.66015625 = 0.16015625 0.66015625 + -1.625x + x2 = 0.16015625 Factor a perfect square on the left side: (x + -0.8125)(x + -0.8125) = 0.16015625 Calculate the square root of the right side: 0.400195265 Break this problem into two subproblems by setting (x + -0.8125) equal to 0.400195265 and -0.400195265.Subproblem 1
x + -0.8125 = 0.400195265 Simplifying x + -0.8125 = 0.400195265 Reorder the terms: -0.8125 + x = 0.400195265 Solving -0.8125 + x = 0.400195265 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8125' to each side of the equation. -0.8125 + 0.8125 + x = 0.400195265 + 0.8125 Combine like terms: -0.8125 + 0.8125 = 0.0000 0.0000 + x = 0.400195265 + 0.8125 x = 0.400195265 + 0.8125 Combine like terms: 0.400195265 + 0.8125 = 1.212695265 x = 1.212695265 Simplifying x = 1.212695265Subproblem 2
x + -0.8125 = -0.400195265 Simplifying x + -0.8125 = -0.400195265 Reorder the terms: -0.8125 + x = -0.400195265 Solving -0.8125 + x = -0.400195265 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8125' to each side of the equation. -0.8125 + 0.8125 + x = -0.400195265 + 0.8125 Combine like terms: -0.8125 + 0.8125 = 0.0000 0.0000 + x = -0.400195265 + 0.8125 x = -0.400195265 + 0.8125 Combine like terms: -0.400195265 + 0.8125 = 0.412304735 x = 0.412304735 Simplifying x = 0.412304735Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.212695265, 0.412304735}Solution
x = {1.212695265, 0.412304735}
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