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Simplifying (x + 6)(x + -6) = 10x + (x + -4) Reorder the terms: (6 + x)(x + -6) = 10x + (x + -4) Reorder the terms: (6 + x)(-6 + x) = 10x + (x + -4) Multiply (6 + x) * (-6 + x) (6(-6 + x) + x(-6 + x)) = 10x + (x + -4) ((-6 * 6 + x * 6) + x(-6 + x)) = 10x + (x + -4) ((-36 + 6x) + x(-6 + x)) = 10x + (x + -4) (-36 + 6x + (-6 * x + x * x)) = 10x + (x + -4) (-36 + 6x + (-6x + x2)) = 10x + (x + -4) Combine like terms: 6x + -6x = 0 (-36 + 0 + x2) = 10x + (x + -4) (-36 + x2) = 10x + (x + -4) Reorder the terms: -36 + x2 = 10x + (-4 + x) Remove parenthesis around (-4 + x) -36 + x2 = 10x + -4 + x Reorder the terms: -36 + x2 = -4 + 10x + x Combine like terms: 10x + x = 11x -36 + x2 = -4 + 11x Solving -36 + x2 = -4 + 11x Solving for variable 'x'. Reorder the terms: -36 + 4 + -11x + x2 = -4 + 11x + 4 + -11x Combine like terms: -36 + 4 = -32 -32 + -11x + x2 = -4 + 11x + 4 + -11x Reorder the terms: -32 + -11x + x2 = -4 + 4 + 11x + -11x Combine like terms: -4 + 4 = 0 -32 + -11x + x2 = 0 + 11x + -11x -32 + -11x + x2 = 11x + -11x Combine like terms: 11x + -11x = 0 -32 + -11x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '32' to each side of the equation. -32 + -11x + 32 + x2 = 0 + 32 Reorder the terms: -32 + 32 + -11x + x2 = 0 + 32 Combine like terms: -32 + 32 = 0 0 + -11x + x2 = 0 + 32 -11x + x2 = 0 + 32 Combine like terms: 0 + 32 = 32 -11x + x2 = 32 The x term is -11x. Take half its coefficient (-5.5). Square it (30.25) and add it to both sides. Add '30.25' to each side of the equation. -11x + 30.25 + x2 = 32 + 30.25 Reorder the terms: 30.25 + -11x + x2 = 32 + 30.25 Combine like terms: 32 + 30.25 = 62.25 30.25 + -11x + x2 = 62.25 Factor a perfect square on the left side: (x + -5.5)(x + -5.5) = 62.25 Calculate the square root of the right side: 7.889866919 Break this problem into two subproblems by setting (x + -5.5) equal to 7.889866919 and -7.889866919.Subproblem 1
x + -5.5 = 7.889866919 Simplifying x + -5.5 = 7.889866919 Reorder the terms: -5.5 + x = 7.889866919 Solving -5.5 + x = 7.889866919 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 7.889866919 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 7.889866919 + 5.5 x = 7.889866919 + 5.5 Combine like terms: 7.889866919 + 5.5 = 13.389866919 x = 13.389866919 Simplifying x = 13.389866919Subproblem 2
x + -5.5 = -7.889866919 Simplifying x + -5.5 = -7.889866919 Reorder the terms: -5.5 + x = -7.889866919 Solving -5.5 + x = -7.889866919 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -7.889866919 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -7.889866919 + 5.5 x = -7.889866919 + 5.5 Combine like terms: -7.889866919 + 5.5 = -2.389866919 x = -2.389866919 Simplifying x = -2.389866919Solution
The solution to the problem is based on the solutions from the subproblems. x = {13.389866919, -2.389866919}
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