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Simplifying (x + 5)(x + -1) = (x + 1) Reorder the terms: (5 + x)(x + -1) = (x + 1) Reorder the terms: (5 + x)(-1 + x) = (x + 1) Multiply (5 + x) * (-1 + x) (5(-1 + x) + x(-1 + x)) = (x + 1) ((-1 * 5 + x * 5) + x(-1 + x)) = (x + 1) ((-5 + 5x) + x(-1 + x)) = (x + 1) (-5 + 5x + (-1 * x + x * x)) = (x + 1) (-5 + 5x + (-1x + x2)) = (x + 1) Combine like terms: 5x + -1x = 4x (-5 + 4x + x2) = (x + 1) Reorder the terms: -5 + 4x + x2 = (1 + x) Remove parenthesis around (1 + x) -5 + 4x + x2 = 1 + x Solving -5 + 4x + x2 = 1 + x Solving for variable 'x'. Reorder the terms: -5 + -1 + 4x + -1x + x2 = 1 + x + -1 + -1x Combine like terms: -5 + -1 = -6 -6 + 4x + -1x + x2 = 1 + x + -1 + -1x Combine like terms: 4x + -1x = 3x -6 + 3x + x2 = 1 + x + -1 + -1x Reorder the terms: -6 + 3x + x2 = 1 + -1 + x + -1x Combine like terms: 1 + -1 = 0 -6 + 3x + x2 = 0 + x + -1x -6 + 3x + x2 = x + -1x Combine like terms: x + -1x = 0 -6 + 3x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '6' to each side of the equation. -6 + 3x + 6 + x2 = 0 + 6 Reorder the terms: -6 + 6 + 3x + x2 = 0 + 6 Combine like terms: -6 + 6 = 0 0 + 3x + x2 = 0 + 6 3x + x2 = 0 + 6 Combine like terms: 0 + 6 = 6 3x + x2 = 6 The x term is 3x. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3x + 2.25 + x2 = 6 + 2.25 Reorder the terms: 2.25 + 3x + x2 = 6 + 2.25 Combine like terms: 6 + 2.25 = 8.25 2.25 + 3x + x2 = 8.25 Factor a perfect square on the left side: (x + 1.5)(x + 1.5) = 8.25 Calculate the square root of the right side: 2.872281323 Break this problem into two subproblems by setting (x + 1.5) equal to 2.872281323 and -2.872281323.Subproblem 1
x + 1.5 = 2.872281323 Simplifying x + 1.5 = 2.872281323 Reorder the terms: 1.5 + x = 2.872281323 Solving 1.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 2.872281323 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 2.872281323 + -1.5 x = 2.872281323 + -1.5 Combine like terms: 2.872281323 + -1.5 = 1.372281323 x = 1.372281323 Simplifying x = 1.372281323Subproblem 2
x + 1.5 = -2.872281323 Simplifying x + 1.5 = -2.872281323 Reorder the terms: 1.5 + x = -2.872281323 Solving 1.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -2.872281323 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -2.872281323 + -1.5 x = -2.872281323 + -1.5 Combine like terms: -2.872281323 + -1.5 = -4.372281323 x = -4.372281323 Simplifying x = -4.372281323Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.372281323, -4.372281323}
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