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Simplifying x(4x + -2) + (4x + -4) = (8x + 3)(x + -1) Reorder the terms: x(-2 + 4x) + (4x + -4) = (8x + 3)(x + -1) (-2 * x + 4x * x) + (4x + -4) = (8x + 3)(x + -1) (-2x + 4x2) + (4x + -4) = (8x + 3)(x + -1) Reorder the terms: -2x + 4x2 + (-4 + 4x) = (8x + 3)(x + -1) Remove parenthesis around (-4 + 4x) -2x + 4x2 + -4 + 4x = (8x + 3)(x + -1) Reorder the terms: -4 + -2x + 4x + 4x2 = (8x + 3)(x + -1) Combine like terms: -2x + 4x = 2x -4 + 2x + 4x2 = (8x + 3)(x + -1) Reorder the terms: -4 + 2x + 4x2 = (3 + 8x)(x + -1) Reorder the terms: -4 + 2x + 4x2 = (3 + 8x)(-1 + x) Multiply (3 + 8x) * (-1 + x) -4 + 2x + 4x2 = (3(-1 + x) + 8x * (-1 + x)) -4 + 2x + 4x2 = ((-1 * 3 + x * 3) + 8x * (-1 + x)) -4 + 2x + 4x2 = ((-3 + 3x) + 8x * (-1 + x)) -4 + 2x + 4x2 = (-3 + 3x + (-1 * 8x + x * 8x)) -4 + 2x + 4x2 = (-3 + 3x + (-8x + 8x2)) Combine like terms: 3x + -8x = -5x -4 + 2x + 4x2 = (-3 + -5x + 8x2) Solving -4 + 2x + 4x2 = -3 + -5x + 8x2 Solving for variable 'x'. Reorder the terms: -4 + 3 + 2x + 5x + 4x2 + -8x2 = -3 + -5x + 8x2 + 3 + 5x + -8x2 Combine like terms: -4 + 3 = -1 -1 + 2x + 5x + 4x2 + -8x2 = -3 + -5x + 8x2 + 3 + 5x + -8x2 Combine like terms: 2x + 5x = 7x -1 + 7x + 4x2 + -8x2 = -3 + -5x + 8x2 + 3 + 5x + -8x2 Combine like terms: 4x2 + -8x2 = -4x2 -1 + 7x + -4x2 = -3 + -5x + 8x2 + 3 + 5x + -8x2 Reorder the terms: -1 + 7x + -4x2 = -3 + 3 + -5x + 5x + 8x2 + -8x2 Combine like terms: -3 + 3 = 0 -1 + 7x + -4x2 = 0 + -5x + 5x + 8x2 + -8x2 -1 + 7x + -4x2 = -5x + 5x + 8x2 + -8x2 Combine like terms: -5x + 5x = 0 -1 + 7x + -4x2 = 0 + 8x2 + -8x2 -1 + 7x + -4x2 = 8x2 + -8x2 Combine like terms: 8x2 + -8x2 = 0 -1 + 7x + -4x2 = 0 Begin completing the square. Divide all terms by -4 the coefficient of the squared term: Divide each side by '-4'. 0.25 + -1.75x + x2 = 0 Move the constant term to the right: Add '-0.25' to each side of the equation. 0.25 + -1.75x + -0.25 + x2 = 0 + -0.25 Reorder the terms: 0.25 + -0.25 + -1.75x + x2 = 0 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + -1.75x + x2 = 0 + -0.25 -1.75x + x2 = 0 + -0.25 Combine like terms: 0 + -0.25 = -0.25 -1.75x + x2 = -0.25 The x term is -1.75x. Take half its coefficient (-0.875). Square it (0.765625) and add it to both sides. Add '0.765625' to each side of the equation. -1.75x + 0.765625 + x2 = -0.25 + 0.765625 Reorder the terms: 0.765625 + -1.75x + x2 = -0.25 + 0.765625 Combine like terms: -0.25 + 0.765625 = 0.515625 0.765625 + -1.75x + x2 = 0.515625 Factor a perfect square on the left side: (x + -0.875)(x + -0.875) = 0.515625 Calculate the square root of the right side: 0.718070331 Break this problem into two subproblems by setting (x + -0.875) equal to 0.718070331 and -0.718070331.Subproblem 1
x + -0.875 = 0.718070331 Simplifying x + -0.875 = 0.718070331 Reorder the terms: -0.875 + x = 0.718070331 Solving -0.875 + x = 0.718070331 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + x = 0.718070331 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + x = 0.718070331 + 0.875 x = 0.718070331 + 0.875 Combine like terms: 0.718070331 + 0.875 = 1.593070331 x = 1.593070331 Simplifying x = 1.593070331Subproblem 2
x + -0.875 = -0.718070331 Simplifying x + -0.875 = -0.718070331 Reorder the terms: -0.875 + x = -0.718070331 Solving -0.875 + x = -0.718070331 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + x = -0.718070331 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + x = -0.718070331 + 0.875 x = -0.718070331 + 0.875 Combine like terms: -0.718070331 + 0.875 = 0.156929669 x = 0.156929669 Simplifying x = 0.156929669Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.593070331, 0.156929669}
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