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Simplifying (6x + -7)(x + -2) = (x + -3)(7x + -6) Reorder the terms: (-7 + 6x)(x + -2) = (x + -3)(7x + -6) Reorder the terms: (-7 + 6x)(-2 + x) = (x + -3)(7x + -6) Multiply (-7 + 6x) * (-2 + x) (-7(-2 + x) + 6x * (-2 + x)) = (x + -3)(7x + -6) ((-2 * -7 + x * -7) + 6x * (-2 + x)) = (x + -3)(7x + -6) ((14 + -7x) + 6x * (-2 + x)) = (x + -3)(7x + -6) (14 + -7x + (-2 * 6x + x * 6x)) = (x + -3)(7x + -6) (14 + -7x + (-12x + 6x2)) = (x + -3)(7x + -6) Combine like terms: -7x + -12x = -19x (14 + -19x + 6x2) = (x + -3)(7x + -6) Reorder the terms: 14 + -19x + 6x2 = (-3 + x)(7x + -6) Reorder the terms: 14 + -19x + 6x2 = (-3 + x)(-6 + 7x) Multiply (-3 + x) * (-6 + 7x) 14 + -19x + 6x2 = (-3(-6 + 7x) + x(-6 + 7x)) 14 + -19x + 6x2 = ((-6 * -3 + 7x * -3) + x(-6 + 7x)) 14 + -19x + 6x2 = ((18 + -21x) + x(-6 + 7x)) 14 + -19x + 6x2 = (18 + -21x + (-6 * x + 7x * x)) 14 + -19x + 6x2 = (18 + -21x + (-6x + 7x2)) Combine like terms: -21x + -6x = -27x 14 + -19x + 6x2 = (18 + -27x + 7x2) Solving 14 + -19x + 6x2 = 18 + -27x + 7x2 Solving for variable 'x'. Reorder the terms: 14 + -18 + -19x + 27x + 6x2 + -7x2 = 18 + -27x + 7x2 + -18 + 27x + -7x2 Combine like terms: 14 + -18 = -4 -4 + -19x + 27x + 6x2 + -7x2 = 18 + -27x + 7x2 + -18 + 27x + -7x2 Combine like terms: -19x + 27x = 8x -4 + 8x + 6x2 + -7x2 = 18 + -27x + 7x2 + -18 + 27x + -7x2 Combine like terms: 6x2 + -7x2 = -1x2 -4 + 8x + -1x2 = 18 + -27x + 7x2 + -18 + 27x + -7x2 Reorder the terms: -4 + 8x + -1x2 = 18 + -18 + -27x + 27x + 7x2 + -7x2 Combine like terms: 18 + -18 = 0 -4 + 8x + -1x2 = 0 + -27x + 27x + 7x2 + -7x2 -4 + 8x + -1x2 = -27x + 27x + 7x2 + -7x2 Combine like terms: -27x + 27x = 0 -4 + 8x + -1x2 = 0 + 7x2 + -7x2 -4 + 8x + -1x2 = 7x2 + -7x2 Combine like terms: 7x2 + -7x2 = 0 -4 + 8x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 4 + -8x + x2 = 0 Move the constant term to the right: Add '-4' to each side of the equation. 4 + -8x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + -8x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -8x + x2 = 0 + -4 -8x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -8x + x2 = -4 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = -4 + 16 Reorder the terms: 16 + -8x + x2 = -4 + 16 Combine like terms: -4 + 16 = 12 16 + -8x + x2 = 12 Factor a perfect square on the left side: (x + -4)(x + -4) = 12 Calculate the square root of the right side: 3.464101615 Break this problem into two subproblems by setting (x + -4) equal to 3.464101615 and -3.464101615.Subproblem 1
x + -4 = 3.464101615 Simplifying x + -4 = 3.464101615 Reorder the terms: -4 + x = 3.464101615 Solving -4 + x = 3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.464101615 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.464101615 + 4 x = 3.464101615 + 4 Combine like terms: 3.464101615 + 4 = 7.464101615 x = 7.464101615 Simplifying x = 7.464101615Subproblem 2
x + -4 = -3.464101615 Simplifying x + -4 = -3.464101615 Reorder the terms: -4 + x = -3.464101615 Solving -4 + x = -3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.464101615 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.464101615 + 4 x = -3.464101615 + 4 Combine like terms: -3.464101615 + 4 = 0.535898385 x = 0.535898385 Simplifying x = 0.535898385Solution
The solution to the problem is based on the solutions from the subproblems. x = {7.464101615, 0.535898385}
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