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Simplifying (3x + -2)(x + -7) = (x + 2)(2x + -3) Reorder the terms: (-2 + 3x)(x + -7) = (x + 2)(2x + -3) Reorder the terms: (-2 + 3x)(-7 + x) = (x + 2)(2x + -3) Multiply (-2 + 3x) * (-7 + x) (-2(-7 + x) + 3x * (-7 + x)) = (x + 2)(2x + -3) ((-7 * -2 + x * -2) + 3x * (-7 + x)) = (x + 2)(2x + -3) ((14 + -2x) + 3x * (-7 + x)) = (x + 2)(2x + -3) (14 + -2x + (-7 * 3x + x * 3x)) = (x + 2)(2x + -3) (14 + -2x + (-21x + 3x2)) = (x + 2)(2x + -3) Combine like terms: -2x + -21x = -23x (14 + -23x + 3x2) = (x + 2)(2x + -3) Reorder the terms: 14 + -23x + 3x2 = (2 + x)(2x + -3) Reorder the terms: 14 + -23x + 3x2 = (2 + x)(-3 + 2x) Multiply (2 + x) * (-3 + 2x) 14 + -23x + 3x2 = (2(-3 + 2x) + x(-3 + 2x)) 14 + -23x + 3x2 = ((-3 * 2 + 2x * 2) + x(-3 + 2x)) 14 + -23x + 3x2 = ((-6 + 4x) + x(-3 + 2x)) 14 + -23x + 3x2 = (-6 + 4x + (-3 * x + 2x * x)) 14 + -23x + 3x2 = (-6 + 4x + (-3x + 2x2)) Combine like terms: 4x + -3x = 1x 14 + -23x + 3x2 = (-6 + 1x + 2x2) Solving 14 + -23x + 3x2 = -6 + 1x + 2x2 Solving for variable 'x'. Reorder the terms: 14 + 6 + -23x + -1x + 3x2 + -2x2 = -6 + 1x + 2x2 + 6 + -1x + -2x2 Combine like terms: 14 + 6 = 20 20 + -23x + -1x + 3x2 + -2x2 = -6 + 1x + 2x2 + 6 + -1x + -2x2 Combine like terms: -23x + -1x = -24x 20 + -24x + 3x2 + -2x2 = -6 + 1x + 2x2 + 6 + -1x + -2x2 Combine like terms: 3x2 + -2x2 = 1x2 20 + -24x + 1x2 = -6 + 1x + 2x2 + 6 + -1x + -2x2 Reorder the terms: 20 + -24x + 1x2 = -6 + 6 + 1x + -1x + 2x2 + -2x2 Combine like terms: -6 + 6 = 0 20 + -24x + 1x2 = 0 + 1x + -1x + 2x2 + -2x2 20 + -24x + 1x2 = 1x + -1x + 2x2 + -2x2 Combine like terms: 1x + -1x = 0 20 + -24x + 1x2 = 0 + 2x2 + -2x2 20 + -24x + 1x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 20 + -24x + 1x2 = 0 Begin completing the square. Move the constant term to the right: Add '-20' to each side of the equation. 20 + -24x + -20 + x2 = 0 + -20 Reorder the terms: 20 + -20 + -24x + x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -24x + x2 = 0 + -20 -24x + x2 = 0 + -20 Combine like terms: 0 + -20 = -20 -24x + x2 = -20 The x term is -24x. Take half its coefficient (-12). Square it (144) and add it to both sides. Add '144' to each side of the equation. -24x + 144 + x2 = -20 + 144 Reorder the terms: 144 + -24x + x2 = -20 + 144 Combine like terms: -20 + 144 = 124 144 + -24x + x2 = 124 Factor a perfect square on the left side: (x + -12)(x + -12) = 124 Calculate the square root of the right side: 11.135528726 Break this problem into two subproblems by setting (x + -12) equal to 11.135528726 and -11.135528726.Subproblem 1
x + -12 = 11.135528726 Simplifying x + -12 = 11.135528726 Reorder the terms: -12 + x = 11.135528726 Solving -12 + x = 11.135528726 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = 11.135528726 + 12 Combine like terms: -12 + 12 = 0 0 + x = 11.135528726 + 12 x = 11.135528726 + 12 Combine like terms: 11.135528726 + 12 = 23.135528726 x = 23.135528726 Simplifying x = 23.135528726Subproblem 2
x + -12 = -11.135528726 Simplifying x + -12 = -11.135528726 Reorder the terms: -12 + x = -11.135528726 Solving -12 + x = -11.135528726 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = -11.135528726 + 12 Combine like terms: -12 + 12 = 0 0 + x = -11.135528726 + 12 x = -11.135528726 + 12 Combine like terms: -11.135528726 + 12 = 0.864471274 x = 0.864471274 Simplifying x = 0.864471274Solution
The solution to the problem is based on the solutions from the subproblems. x = {23.135528726, 0.864471274}
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