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Simplifying x2 + -3000x + 400000 = 0 Reorder the terms: 400000 + -3000x + x2 = 0 Solving 400000 + -3000x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-400000' to each side of the equation. 400000 + -3000x + -400000 + x2 = 0 + -400000 Reorder the terms: 400000 + -400000 + -3000x + x2 = 0 + -400000 Combine like terms: 400000 + -400000 = 0 0 + -3000x + x2 = 0 + -400000 -3000x + x2 = 0 + -400000 Combine like terms: 0 + -400000 = -400000 -3000x + x2 = -400000 The x term is -3000x. Take half its coefficient (-1500). Square it (2250000) and add it to both sides. Add '2250000' to each side of the equation. -3000x + 2250000 + x2 = -400000 + 2250000 Reorder the terms: 2250000 + -3000x + x2 = -400000 + 2250000 Combine like terms: -400000 + 2250000 = 1850000 2250000 + -3000x + x2 = 1850000 Factor a perfect square on the left side: (x + -1500)(x + -1500) = 1850000 Calculate the square root of the right side: 1360.147050874 Break this problem into two subproblems by setting (x + -1500) equal to 1360.147050874 and -1360.147050874.Subproblem 1
x + -1500 = 1360.147050874 Simplifying x + -1500 = 1360.147050874 Reorder the terms: -1500 + x = 1360.147050874 Solving -1500 + x = 1360.147050874 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1500' to each side of the equation. -1500 + 1500 + x = 1360.147050874 + 1500 Combine like terms: -1500 + 1500 = 0 0 + x = 1360.147050874 + 1500 x = 1360.147050874 + 1500 Combine like terms: 1360.147050874 + 1500 = 2860.147050874 x = 2860.147050874 Simplifying x = 2860.147050874Subproblem 2
x + -1500 = -1360.147050874 Simplifying x + -1500 = -1360.147050874 Reorder the terms: -1500 + x = -1360.147050874 Solving -1500 + x = -1360.147050874 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1500' to each side of the equation. -1500 + 1500 + x = -1360.147050874 + 1500 Combine like terms: -1500 + 1500 = 0 0 + x = -1360.147050874 + 1500 x = -1360.147050874 + 1500 Combine like terms: -1360.147050874 + 1500 = 139.852949126 x = 139.852949126 Simplifying x = 139.852949126Solution
The solution to the problem is based on the solutions from the subproblems. x = {2860.147050874, 139.852949126}
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