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Simplifying (4x + 3)(x + -2) = (x + 3)(x + -1) Reorder the terms: (3 + 4x)(x + -2) = (x + 3)(x + -1) Reorder the terms: (3 + 4x)(-2 + x) = (x + 3)(x + -1) Multiply (3 + 4x) * (-2 + x) (3(-2 + x) + 4x * (-2 + x)) = (x + 3)(x + -1) ((-2 * 3 + x * 3) + 4x * (-2 + x)) = (x + 3)(x + -1) ((-6 + 3x) + 4x * (-2 + x)) = (x + 3)(x + -1) (-6 + 3x + (-2 * 4x + x * 4x)) = (x + 3)(x + -1) (-6 + 3x + (-8x + 4x2)) = (x + 3)(x + -1) Combine like terms: 3x + -8x = -5x (-6 + -5x + 4x2) = (x + 3)(x + -1) Reorder the terms: -6 + -5x + 4x2 = (3 + x)(x + -1) Reorder the terms: -6 + -5x + 4x2 = (3 + x)(-1 + x) Multiply (3 + x) * (-1 + x) -6 + -5x + 4x2 = (3(-1 + x) + x(-1 + x)) -6 + -5x + 4x2 = ((-1 * 3 + x * 3) + x(-1 + x)) -6 + -5x + 4x2 = ((-3 + 3x) + x(-1 + x)) -6 + -5x + 4x2 = (-3 + 3x + (-1 * x + x * x)) -6 + -5x + 4x2 = (-3 + 3x + (-1x + x2)) Combine like terms: 3x + -1x = 2x -6 + -5x + 4x2 = (-3 + 2x + x2) Solving -6 + -5x + 4x2 = -3 + 2x + x2 Solving for variable 'x'. Reorder the terms: -6 + 3 + -5x + -2x + 4x2 + -1x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Combine like terms: -6 + 3 = -3 -3 + -5x + -2x + 4x2 + -1x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Combine like terms: -5x + -2x = -7x -3 + -7x + 4x2 + -1x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Combine like terms: 4x2 + -1x2 = 3x2 -3 + -7x + 3x2 = -3 + 2x + x2 + 3 + -2x + -1x2 Reorder the terms: -3 + -7x + 3x2 = -3 + 3 + 2x + -2x + x2 + -1x2 Combine like terms: -3 + 3 = 0 -3 + -7x + 3x2 = 0 + 2x + -2x + x2 + -1x2 -3 + -7x + 3x2 = 2x + -2x + x2 + -1x2 Combine like terms: 2x + -2x = 0 -3 + -7x + 3x2 = 0 + x2 + -1x2 -3 + -7x + 3x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -3 + -7x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -1 + -2.333333333x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + -2.333333333x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -2.333333333x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2.333333333x + x2 = 0 + 1 -2.333333333x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -2.333333333x + x2 = 1 The x term is -2.333333333x. Take half its coefficient (-1.166666667). Square it (1.361111112) and add it to both sides. Add '1.361111112' to each side of the equation. -2.333333333x + 1.361111112 + x2 = 1 + 1.361111112 Reorder the terms: 1.361111112 + -2.333333333x + x2 = 1 + 1.361111112 Combine like terms: 1 + 1.361111112 = 2.361111112 1.361111112 + -2.333333333x + x2 = 2.361111112 Factor a perfect square on the left side: (x + -1.166666667)(x + -1.166666667) = 2.361111112 Calculate the square root of the right side: 1.536590743 Break this problem into two subproblems by setting (x + -1.166666667) equal to 1.536590743 and -1.536590743.Subproblem 1
x + -1.166666667 = 1.536590743 Simplifying x + -1.166666667 = 1.536590743 Reorder the terms: -1.166666667 + x = 1.536590743 Solving -1.166666667 + x = 1.536590743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = 1.536590743 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = 1.536590743 + 1.166666667 x = 1.536590743 + 1.166666667 Combine like terms: 1.536590743 + 1.166666667 = 2.70325741 x = 2.70325741 Simplifying x = 2.70325741Subproblem 2
x + -1.166666667 = -1.536590743 Simplifying x + -1.166666667 = -1.536590743 Reorder the terms: -1.166666667 + x = -1.536590743 Solving -1.166666667 + x = -1.536590743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.166666667' to each side of the equation. -1.166666667 + 1.166666667 + x = -1.536590743 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + x = -1.536590743 + 1.166666667 x = -1.536590743 + 1.166666667 Combine like terms: -1.536590743 + 1.166666667 = -0.369924076 x = -0.369924076 Simplifying x = -0.369924076Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.70325741, -0.369924076}
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