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Simplifying (x + 5) * x(x + -1) = 8x Reorder the terms: (5 + x) * x(x + -1) = 8x Reorder the terms: (5 + x) * x(-1 + x) = 8x Reorder the terms for easier multiplication: x(5 + x)(-1 + x) = 8x Multiply (5 + x) * (-1 + x) x(5(-1 + x) + x(-1 + x)) = 8x x((-1 * 5 + x * 5) + x(-1 + x)) = 8x x((-5 + 5x) + x(-1 + x)) = 8x x(-5 + 5x + (-1 * x + x * x)) = 8x x(-5 + 5x + (-1x + x2)) = 8x Combine like terms: 5x + -1x = 4x x(-5 + 4x + x2) = 8x (-5 * x + 4x * x + x2 * x) = 8x (-5x + 4x2 + x3) = 8x Solving -5x + 4x2 + x3 = 8x Solving for variable 'x'. Reorder the terms: -5x + -8x + 4x2 + x3 = 8x + -8x Combine like terms: -5x + -8x = -13x -13x + 4x2 + x3 = 8x + -8x Combine like terms: 8x + -8x = 0 -13x + 4x2 + x3 = 0 Factor out the Greatest Common Factor (GCF), 'x'. x(-13 + 4x + x2) = 0Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-13 + 4x + x2)' equal to zero and attempt to solve: Simplifying -13 + 4x + x2 = 0 Solving -13 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '13' to each side of the equation. -13 + 4x + 13 + x2 = 0 + 13 Reorder the terms: -13 + 13 + 4x + x2 = 0 + 13 Combine like terms: -13 + 13 = 0 0 + 4x + x2 = 0 + 13 4x + x2 = 0 + 13 Combine like terms: 0 + 13 = 13 4x + x2 = 13 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 13 + 4 Reorder the terms: 4 + 4x + x2 = 13 + 4 Combine like terms: 13 + 4 = 17 4 + 4x + x2 = 17 Factor a perfect square on the left side: (x + 2)(x + 2) = 17 Calculate the square root of the right side: 4.123105626 Break this problem into two subproblems by setting (x + 2) equal to 4.123105626 and -4.123105626.Subproblem 1
x + 2 = 4.123105626 Simplifying x + 2 = 4.123105626 Reorder the terms: 2 + x = 4.123105626 Solving 2 + x = 4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 4.123105626 + -2 Combine like terms: 2 + -2 = 0 0 + x = 4.123105626 + -2 x = 4.123105626 + -2 Combine like terms: 4.123105626 + -2 = 2.123105626 x = 2.123105626 Simplifying x = 2.123105626Subproblem 2
x + 2 = -4.123105626 Simplifying x + 2 = -4.123105626 Reorder the terms: 2 + x = -4.123105626 Solving 2 + x = -4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -4.123105626 + -2 Combine like terms: 2 + -2 = 0 0 + x = -4.123105626 + -2 x = -4.123105626 + -2 Combine like terms: -4.123105626 + -2 = -6.123105626 x = -6.123105626 Simplifying x = -6.123105626Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.123105626, -6.123105626}Solution
x = {0, 2.123105626, -6.123105626}
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