x^2-3000x+400000=0

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Solution for x^2-3000x+400000=0 equation:


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 = 2860.147050874

Subproblem 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 = 139.852949126

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2860.147050874, 139.852949126}

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