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Simplifying 5x(x + -5) = (3x + 4)(x + 5) Reorder the terms: 5x(-5 + x) = (3x + 4)(x + 5) (-5 * 5x + x * 5x) = (3x + 4)(x + 5) (-25x + 5x2) = (3x + 4)(x + 5) Reorder the terms: -25x + 5x2 = (4 + 3x)(x + 5) Reorder the terms: -25x + 5x2 = (4 + 3x)(5 + x) Multiply (4 + 3x) * (5 + x) -25x + 5x2 = (4(5 + x) + 3x * (5 + x)) -25x + 5x2 = ((5 * 4 + x * 4) + 3x * (5 + x)) -25x + 5x2 = ((20 + 4x) + 3x * (5 + x)) -25x + 5x2 = (20 + 4x + (5 * 3x + x * 3x)) -25x + 5x2 = (20 + 4x + (15x + 3x2)) Combine like terms: 4x + 15x = 19x -25x + 5x2 = (20 + 19x + 3x2) Solving -25x + 5x2 = 20 + 19x + 3x2 Solving for variable 'x'. Reorder the terms: -20 + -25x + -19x + 5x2 + -3x2 = 20 + 19x + 3x2 + -20 + -19x + -3x2 Combine like terms: -25x + -19x = -44x -20 + -44x + 5x2 + -3x2 = 20 + 19x + 3x2 + -20 + -19x + -3x2 Combine like terms: 5x2 + -3x2 = 2x2 -20 + -44x + 2x2 = 20 + 19x + 3x2 + -20 + -19x + -3x2 Reorder the terms: -20 + -44x + 2x2 = 20 + -20 + 19x + -19x + 3x2 + -3x2 Combine like terms: 20 + -20 = 0 -20 + -44x + 2x2 = 0 + 19x + -19x + 3x2 + -3x2 -20 + -44x + 2x2 = 19x + -19x + 3x2 + -3x2 Combine like terms: 19x + -19x = 0 -20 + -44x + 2x2 = 0 + 3x2 + -3x2 -20 + -44x + 2x2 = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -20 + -44x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-10 + -22x + x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-10 + -22x + x2)' equal to zero and attempt to solve: Simplifying -10 + -22x + x2 = 0 Solving -10 + -22x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + -22x + 10 + x2 = 0 + 10 Reorder the terms: -10 + 10 + -22x + x2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -22x + x2 = 0 + 10 -22x + x2 = 0 + 10 Combine like terms: 0 + 10 = 10 -22x + x2 = 10 The x term is -22x. Take half its coefficient (-11). Square it (121) and add it to both sides. Add '121' to each side of the equation. -22x + 121 + x2 = 10 + 121 Reorder the terms: 121 + -22x + x2 = 10 + 121 Combine like terms: 10 + 121 = 131 121 + -22x + x2 = 131 Factor a perfect square on the left side: (x + -11)(x + -11) = 131 Calculate the square root of the right side: 11.445523142 Break this problem into two subproblems by setting (x + -11) equal to 11.445523142 and -11.445523142.Subproblem 1
x + -11 = 11.445523142 Simplifying x + -11 = 11.445523142 Reorder the terms: -11 + x = 11.445523142 Solving -11 + x = 11.445523142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = 11.445523142 + 11 Combine like terms: -11 + 11 = 0 0 + x = 11.445523142 + 11 x = 11.445523142 + 11 Combine like terms: 11.445523142 + 11 = 22.445523142 x = 22.445523142 Simplifying x = 22.445523142Subproblem 2
x + -11 = -11.445523142 Simplifying x + -11 = -11.445523142 Reorder the terms: -11 + x = -11.445523142 Solving -11 + x = -11.445523142 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = -11.445523142 + 11 Combine like terms: -11 + 11 = 0 0 + x = -11.445523142 + 11 x = -11.445523142 + 11 Combine like terms: -11.445523142 + 11 = -0.445523142 x = -0.445523142 Simplifying x = -0.445523142Solution
The solution to the problem is based on the solutions from the subproblems. x = {22.445523142, -0.445523142}Solution
x = {22.445523142, -0.445523142}
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