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Simplifying (x + 10)(x + -2) = (x + 2) * 2 Reorder the terms: (10 + x)(x + -2) = (x + 2) * 2 Reorder the terms: (10 + x)(-2 + x) = (x + 2) * 2 Multiply (10 + x) * (-2 + x) (10(-2 + x) + x(-2 + x)) = (x + 2) * 2 ((-2 * 10 + x * 10) + x(-2 + x)) = (x + 2) * 2 ((-20 + 10x) + x(-2 + x)) = (x + 2) * 2 (-20 + 10x + (-2 * x + x * x)) = (x + 2) * 2 (-20 + 10x + (-2x + x2)) = (x + 2) * 2 Combine like terms: 10x + -2x = 8x (-20 + 8x + x2) = (x + 2) * 2 Reorder the terms: -20 + 8x + x2 = (2 + x) * 2 Reorder the terms for easier multiplication: -20 + 8x + x2 = 2(2 + x) -20 + 8x + x2 = (2 * 2 + x * 2) -20 + 8x + x2 = (4 + 2x) Solving -20 + 8x + x2 = 4 + 2x Solving for variable 'x'. Reorder the terms: -20 + -4 + 8x + -2x + x2 = 4 + 2x + -4 + -2x Combine like terms: -20 + -4 = -24 -24 + 8x + -2x + x2 = 4 + 2x + -4 + -2x Combine like terms: 8x + -2x = 6x -24 + 6x + x2 = 4 + 2x + -4 + -2x Reorder the terms: -24 + 6x + x2 = 4 + -4 + 2x + -2x Combine like terms: 4 + -4 = 0 -24 + 6x + x2 = 0 + 2x + -2x -24 + 6x + x2 = 2x + -2x Combine like terms: 2x + -2x = 0 -24 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '24' to each side of the equation. -24 + 6x + 24 + x2 = 0 + 24 Reorder the terms: -24 + 24 + 6x + x2 = 0 + 24 Combine like terms: -24 + 24 = 0 0 + 6x + x2 = 0 + 24 6x + x2 = 0 + 24 Combine like terms: 0 + 24 = 24 6x + x2 = 24 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = 24 + 9 Reorder the terms: 9 + 6x + x2 = 24 + 9 Combine like terms: 24 + 9 = 33 9 + 6x + x2 = 33 Factor a perfect square on the left side: (x + 3)(x + 3) = 33 Calculate the square root of the right side: 5.744562647 Break this problem into two subproblems by setting (x + 3) equal to 5.744562647 and -5.744562647.Subproblem 1
x + 3 = 5.744562647 Simplifying x + 3 = 5.744562647 Reorder the terms: 3 + x = 5.744562647 Solving 3 + x = 5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 5.744562647 + -3 Combine like terms: 3 + -3 = 0 0 + x = 5.744562647 + -3 x = 5.744562647 + -3 Combine like terms: 5.744562647 + -3 = 2.744562647 x = 2.744562647 Simplifying x = 2.744562647Subproblem 2
x + 3 = -5.744562647 Simplifying x + 3 = -5.744562647 Reorder the terms: 3 + x = -5.744562647 Solving 3 + x = -5.744562647 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -5.744562647 + -3 Combine like terms: 3 + -3 = 0 0 + x = -5.744562647 + -3 x = -5.744562647 + -3 Combine like terms: -5.744562647 + -3 = -8.744562647 x = -8.744562647 Simplifying x = -8.744562647Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.744562647, -8.744562647}
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