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Simplifying 3(x + -3) + 5(x + -4) = (x + -4)(x + -3) Reorder the terms: 3(-3 + x) + 5(x + -4) = (x + -4)(x + -3) (-3 * 3 + x * 3) + 5(x + -4) = (x + -4)(x + -3) (-9 + 3x) + 5(x + -4) = (x + -4)(x + -3) Reorder the terms: -9 + 3x + 5(-4 + x) = (x + -4)(x + -3) -9 + 3x + (-4 * 5 + x * 5) = (x + -4)(x + -3) -9 + 3x + (-20 + 5x) = (x + -4)(x + -3) Reorder the terms: -9 + -20 + 3x + 5x = (x + -4)(x + -3) Combine like terms: -9 + -20 = -29 -29 + 3x + 5x = (x + -4)(x + -3) Combine like terms: 3x + 5x = 8x -29 + 8x = (x + -4)(x + -3) Reorder the terms: -29 + 8x = (-4 + x)(x + -3) Reorder the terms: -29 + 8x = (-4 + x)(-3 + x) Multiply (-4 + x) * (-3 + x) -29 + 8x = (-4(-3 + x) + x(-3 + x)) -29 + 8x = ((-3 * -4 + x * -4) + x(-3 + x)) -29 + 8x = ((12 + -4x) + x(-3 + x)) -29 + 8x = (12 + -4x + (-3 * x + x * x)) -29 + 8x = (12 + -4x + (-3x + x2)) Combine like terms: -4x + -3x = -7x -29 + 8x = (12 + -7x + x2) Solving -29 + 8x = 12 + -7x + x2 Solving for variable 'x'. Reorder the terms: -29 + -12 + 8x + 7x + -1x2 = 12 + -7x + x2 + -12 + 7x + -1x2 Combine like terms: -29 + -12 = -41 -41 + 8x + 7x + -1x2 = 12 + -7x + x2 + -12 + 7x + -1x2 Combine like terms: 8x + 7x = 15x -41 + 15x + -1x2 = 12 + -7x + x2 + -12 + 7x + -1x2 Reorder the terms: -41 + 15x + -1x2 = 12 + -12 + -7x + 7x + x2 + -1x2 Combine like terms: 12 + -12 = 0 -41 + 15x + -1x2 = 0 + -7x + 7x + x2 + -1x2 -41 + 15x + -1x2 = -7x + 7x + x2 + -1x2 Combine like terms: -7x + 7x = 0 -41 + 15x + -1x2 = 0 + x2 + -1x2 -41 + 15x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -41 + 15x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 41 + -15x + x2 = 0 Move the constant term to the right: Add '-41' to each side of the equation. 41 + -15x + -41 + x2 = 0 + -41 Reorder the terms: 41 + -41 + -15x + x2 = 0 + -41 Combine like terms: 41 + -41 = 0 0 + -15x + x2 = 0 + -41 -15x + x2 = 0 + -41 Combine like terms: 0 + -41 = -41 -15x + x2 = -41 The x term is -15x. Take half its coefficient (-7.5). Square it (56.25) and add it to both sides. Add '56.25' to each side of the equation. -15x + 56.25 + x2 = -41 + 56.25 Reorder the terms: 56.25 + -15x + x2 = -41 + 56.25 Combine like terms: -41 + 56.25 = 15.25 56.25 + -15x + x2 = 15.25 Factor a perfect square on the left side: (x + -7.5)(x + -7.5) = 15.25 Calculate the square root of the right side: 3.905124838 Break this problem into two subproblems by setting (x + -7.5) equal to 3.905124838 and -3.905124838.Subproblem 1
x + -7.5 = 3.905124838 Simplifying x + -7.5 = 3.905124838 Reorder the terms: -7.5 + x = 3.905124838 Solving -7.5 + x = 3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 3.905124838 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 3.905124838 + 7.5 x = 3.905124838 + 7.5 Combine like terms: 3.905124838 + 7.5 = 11.405124838 x = 11.405124838 Simplifying x = 11.405124838Subproblem 2
x + -7.5 = -3.905124838 Simplifying x + -7.5 = -3.905124838 Reorder the terms: -7.5 + x = -3.905124838 Solving -7.5 + x = -3.905124838 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = -3.905124838 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = -3.905124838 + 7.5 x = -3.905124838 + 7.5 Combine like terms: -3.905124838 + 7.5 = 3.594875162 x = 3.594875162 Simplifying x = 3.594875162Solution
The solution to the problem is based on the solutions from the subproblems. x = {11.405124838, 3.594875162}
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