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Simplifying 4(4x + -1)(2x + 3) = (x + 3)(x + -1) Reorder the terms: 4(-1 + 4x)(2x + 3) = (x + 3)(x + -1) Reorder the terms: 4(-1 + 4x)(3 + 2x) = (x + 3)(x + -1) Multiply (-1 + 4x) * (3 + 2x) 4(-1(3 + 2x) + 4x * (3 + 2x)) = (x + 3)(x + -1) 4((3 * -1 + 2x * -1) + 4x * (3 + 2x)) = (x + 3)(x + -1) 4((-3 + -2x) + 4x * (3 + 2x)) = (x + 3)(x + -1) 4(-3 + -2x + (3 * 4x + 2x * 4x)) = (x + 3)(x + -1) 4(-3 + -2x + (12x + 8x2)) = (x + 3)(x + -1) Combine like terms: -2x + 12x = 10x 4(-3 + 10x + 8x2) = (x + 3)(x + -1) (-3 * 4 + 10x * 4 + 8x2 * 4) = (x + 3)(x + -1) (-12 + 40x + 32x2) = (x + 3)(x + -1) Reorder the terms: -12 + 40x + 32x2 = (3 + x)(x + -1) Reorder the terms: -12 + 40x + 32x2 = (3 + x)(-1 + x) Multiply (3 + x) * (-1 + x) -12 + 40x + 32x2 = (3(-1 + x) + x(-1 + x)) -12 + 40x + 32x2 = ((-1 * 3 + x * 3) + x(-1 + x)) -12 + 40x + 32x2 = ((-3 + 3x) + x(-1 + x)) -12 + 40x + 32x2 = (-3 + 3x + (-1 * x + x * x)) -12 + 40x + 32x2 = (-3 + 3x + (-1x + x2)) Combine like terms: 3x + -1x = 2x -12 + 40x + 32x2 = (-3 + 2x + x2) Solving -12 + 40x + 32x2 = -3 + 2x + x2 Solving for variable 'x'. Reorder the terms: -12 + 3 + 40x + -2x + 32x2 + -1x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Combine like terms: -12 + 3 = -9 -9 + 40x + -2x + 32x2 + -1x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Combine like terms: 40x + -2x = 38x -9 + 38x + 32x2 + -1x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Combine like terms: 32x2 + -1x2 = 31x2 -9 + 38x + 31x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Reorder the terms: -9 + 38x + 31x2 = -3 + 3 + 2x + -2x + x2 + -1x2 Combine like terms: -3 + 3 = 0 -9 + 38x + 31x2 = 0 + 2x + -2x + x2 + -1x2 -9 + 38x + 31x2 = 2x + -2x + x2 + -1x2 Combine like terms: 2x + -2x = 0 -9 + 38x + 31x2 = 0 + x2 + -1x2 -9 + 38x + 31x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -9 + 38x + 31x2 = 0 Begin completing the square. Divide all terms by 31 the coefficient of the squared term: Divide each side by '31'. -0.2903225806 + 1.225806452x + x2 = 0 Move the constant term to the right: Add '0.2903225806' to each side of the equation. -0.2903225806 + 1.225806452x + 0.2903225806 + x2 = 0 + 0.2903225806 Reorder the terms: -0.2903225806 + 0.2903225806 + 1.225806452x + x2 = 0 + 0.2903225806 Combine like terms: -0.2903225806 + 0.2903225806 = 0.0000000000 0.0000000000 + 1.225806452x + x2 = 0 + 0.2903225806 1.225806452x + x2 = 0 + 0.2903225806 Combine like terms: 0 + 0.2903225806 = 0.2903225806 1.225806452x + x2 = 0.2903225806 The x term is 1.225806452x. Take half its coefficient (0.612903226). Square it (0.3756503644) and add it to both sides. Add '0.3756503644' to each side of the equation. 1.225806452x + 0.3756503644 + x2 = 0.2903225806 + 0.3756503644 Reorder the terms: 0.3756503644 + 1.225806452x + x2 = 0.2903225806 + 0.3756503644 Combine like terms: 0.2903225806 + 0.3756503644 = 0.665972945 0.3756503644 + 1.225806452x + x2 = 0.665972945 Factor a perfect square on the left side: (x + 0.612903226)(x + 0.612903226) = 0.665972945 Calculate the square root of the right side: 0.816071654 Break this problem into two subproblems by setting (x + 0.612903226) equal to 0.816071654 and -0.816071654.Subproblem 1
x + 0.612903226 = 0.816071654 Simplifying x + 0.612903226 = 0.816071654 Reorder the terms: 0.612903226 + x = 0.816071654 Solving 0.612903226 + x = 0.816071654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.612903226' to each side of the equation. 0.612903226 + -0.612903226 + x = 0.816071654 + -0.612903226 Combine like terms: 0.612903226 + -0.612903226 = 0.000000000 0.000000000 + x = 0.816071654 + -0.612903226 x = 0.816071654 + -0.612903226 Combine like terms: 0.816071654 + -0.612903226 = 0.203168428 x = 0.203168428 Simplifying x = 0.203168428Subproblem 2
x + 0.612903226 = -0.816071654 Simplifying x + 0.612903226 = -0.816071654 Reorder the terms: 0.612903226 + x = -0.816071654 Solving 0.612903226 + x = -0.816071654 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.612903226' to each side of the equation. 0.612903226 + -0.612903226 + x = -0.816071654 + -0.612903226 Combine like terms: 0.612903226 + -0.612903226 = 0.000000000 0.000000000 + x = -0.816071654 + -0.612903226 x = -0.816071654 + -0.612903226 Combine like terms: -0.816071654 + -0.612903226 = -1.42897488 x = -1.42897488 Simplifying x = -1.42897488Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.203168428, -1.42897488}
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