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Simplifying 9(3x + 6) = -1x(x + -2) Reorder the terms: 9(6 + 3x) = -1x(x + -2) (6 * 9 + 3x * 9) = -1x(x + -2) (54 + 27x) = -1x(x + -2) Reorder the terms: 54 + 27x = -1x(-2 + x) 54 + 27x = (-2 * -1x + x * -1x) 54 + 27x = (2x + -1x2) Solving 54 + 27x = 2x + -1x2 Solving for variable 'x'. Combine like terms: 27x + -2x = 25x 54 + 25x + x2 = 2x + -1x2 + -2x + x2 Reorder the terms: 54 + 25x + x2 = 2x + -2x + -1x2 + x2 Combine like terms: 2x + -2x = 0 54 + 25x + x2 = 0 + -1x2 + x2 54 + 25x + x2 = -1x2 + x2 Combine like terms: -1x2 + x2 = 0 54 + 25x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-54' to each side of the equation. 54 + 25x + -54 + x2 = 0 + -54 Reorder the terms: 54 + -54 + 25x + x2 = 0 + -54 Combine like terms: 54 + -54 = 0 0 + 25x + x2 = 0 + -54 25x + x2 = 0 + -54 Combine like terms: 0 + -54 = -54 25x + x2 = -54 The x term is 25x. Take half its coefficient (12.5). Square it (156.25) and add it to both sides. Add '156.25' to each side of the equation. 25x + 156.25 + x2 = -54 + 156.25 Reorder the terms: 156.25 + 25x + x2 = -54 + 156.25 Combine like terms: -54 + 156.25 = 102.25 156.25 + 25x + x2 = 102.25 Factor a perfect square on the left side: (x + 12.5)(x + 12.5) = 102.25 Calculate the square root of the right side: 10.111874208 Break this problem into two subproblems by setting (x + 12.5) equal to 10.111874208 and -10.111874208.Subproblem 1
x + 12.5 = 10.111874208 Simplifying x + 12.5 = 10.111874208 Reorder the terms: 12.5 + x = 10.111874208 Solving 12.5 + x = 10.111874208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + x = 10.111874208 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + x = 10.111874208 + -12.5 x = 10.111874208 + -12.5 Combine like terms: 10.111874208 + -12.5 = -2.388125792 x = -2.388125792 Simplifying x = -2.388125792Subproblem 2
x + 12.5 = -10.111874208 Simplifying x + 12.5 = -10.111874208 Reorder the terms: 12.5 + x = -10.111874208 Solving 12.5 + x = -10.111874208 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + x = -10.111874208 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + x = -10.111874208 + -12.5 x = -10.111874208 + -12.5 Combine like terms: -10.111874208 + -12.5 = -22.611874208 x = -22.611874208 Simplifying x = -22.611874208Solution
The solution to the problem is based on the solutions from the subproblems. x = {-2.388125792, -22.611874208}
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