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Simplifying x2 + 9x + -60 = 0 Reorder the terms: -60 + 9x + x2 = 0 Solving -60 + 9x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '60' to each side of the equation. -60 + 9x + 60 + x2 = 0 + 60 Reorder the terms: -60 + 60 + 9x + x2 = 0 + 60 Combine like terms: -60 + 60 = 0 0 + 9x + x2 = 0 + 60 9x + x2 = 0 + 60 Combine like terms: 0 + 60 = 60 9x + x2 = 60 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = 60 + 20.25 Reorder the terms: 20.25 + 9x + x2 = 60 + 20.25 Combine like terms: 60 + 20.25 = 80.25 20.25 + 9x + x2 = 80.25 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 80.25 Calculate the square root of the right side: 8.958236434 Break this problem into two subproblems by setting (x + 4.5) equal to 8.958236434 and -8.958236434.Subproblem 1
x + 4.5 = 8.958236434 Simplifying x + 4.5 = 8.958236434 Reorder the terms: 4.5 + x = 8.958236434 Solving 4.5 + x = 8.958236434 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 8.958236434 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 8.958236434 + -4.5 x = 8.958236434 + -4.5 Combine like terms: 8.958236434 + -4.5 = 4.458236434 x = 4.458236434 Simplifying x = 4.458236434Subproblem 2
x + 4.5 = -8.958236434 Simplifying x + 4.5 = -8.958236434 Reorder the terms: 4.5 + x = -8.958236434 Solving 4.5 + x = -8.958236434 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -8.958236434 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -8.958236434 + -4.5 x = -8.958236434 + -4.5 Combine like terms: -8.958236434 + -4.5 = -13.458236434 x = -13.458236434 Simplifying x = -13.458236434Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.458236434, -13.458236434}
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