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Simplifying x2 + -60x + -900 = 0 Reorder the terms: -900 + -60x + x2 = 0 Solving -900 + -60x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '900' to each side of the equation. -900 + -60x + 900 + x2 = 0 + 900 Reorder the terms: -900 + 900 + -60x + x2 = 0 + 900 Combine like terms: -900 + 900 = 0 0 + -60x + x2 = 0 + 900 -60x + x2 = 0 + 900 Combine like terms: 0 + 900 = 900 -60x + x2 = 900 The x term is -60x. Take half its coefficient (-30). Square it (900) and add it to both sides. Add '900' to each side of the equation. -60x + 900 + x2 = 900 + 900 Reorder the terms: 900 + -60x + x2 = 900 + 900 Combine like terms: 900 + 900 = 1800 900 + -60x + x2 = 1800 Factor a perfect square on the left side: (x + -30)(x + -30) = 1800 Calculate the square root of the right side: 42.426406871 Break this problem into two subproblems by setting (x + -30) equal to 42.426406871 and -42.426406871.Subproblem 1
x + -30 = 42.426406871 Simplifying x + -30 = 42.426406871 Reorder the terms: -30 + x = 42.426406871 Solving -30 + x = 42.426406871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = 42.426406871 + 30 Combine like terms: -30 + 30 = 0 0 + x = 42.426406871 + 30 x = 42.426406871 + 30 Combine like terms: 42.426406871 + 30 = 72.426406871 x = 72.426406871 Simplifying x = 72.426406871Subproblem 2
x + -30 = -42.426406871 Simplifying x + -30 = -42.426406871 Reorder the terms: -30 + x = -42.426406871 Solving -30 + x = -42.426406871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + x = -42.426406871 + 30 Combine like terms: -30 + 30 = 0 0 + x = -42.426406871 + 30 x = -42.426406871 + 30 Combine like terms: -42.426406871 + 30 = -12.426406871 x = -12.426406871 Simplifying x = -12.426406871Solution
The solution to the problem is based on the solutions from the subproblems. x = {72.426406871, -12.426406871}
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