x^2-5x+6=2000000

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Solution for x^2-5x+6=2000000 equation:


Simplifying
x2 + -5x + 6 = 2000000

Reorder the terms:
6 + -5x + x2 = 2000000

Solving
6 + -5x + x2 = 2000000

Solving for variable 'x'.

Reorder the terms:
6 + -2000000 + -5x + x2 = 2000000 + -2000000

Combine like terms: 6 + -2000000 = -1999994
-1999994 + -5x + x2 = 2000000 + -2000000

Combine like terms: 2000000 + -2000000 = 0
-1999994 + -5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1999994' to each side of the equation.
-1999994 + -5x + 1999994 + x2 = 0 + 1999994

Reorder the terms:
-1999994 + 1999994 + -5x + x2 = 0 + 1999994

Combine like terms: -1999994 + 1999994 = 0
0 + -5x + x2 = 0 + 1999994
-5x + x2 = 0 + 1999994

Combine like terms: 0 + 1999994 = 1999994
-5x + x2 = 1999994

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = 1999994 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 1999994 + 6.25

Combine like terms: 1999994 + 6.25 = 2000000.25
6.25 + -5x + x2 = 2000000.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 2000000.25

Calculate the square root of the right side: 1414.213650761

Break this problem into two subproblems by setting 
(x + -2.5) equal to 1414.213650761 and -1414.213650761.

Subproblem 1

x + -2.5 = 1414.213650761 Simplifying x + -2.5 = 1414.213650761 Reorder the terms: -2.5 + x = 1414.213650761 Solving -2.5 + x = 1414.213650761 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 1414.213650761 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 1414.213650761 + 2.5 x = 1414.213650761 + 2.5 Combine like terms: 1414.213650761 + 2.5 = 1416.713650761 x = 1416.713650761 Simplifying x = 1416.713650761

Subproblem 2

x + -2.5 = -1414.213650761 Simplifying x + -2.5 = -1414.213650761 Reorder the terms: -2.5 + x = -1414.213650761 Solving -2.5 + x = -1414.213650761 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -1414.213650761 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -1414.213650761 + 2.5 x = -1414.213650761 + 2.5 Combine like terms: -1414.213650761 + 2.5 = -1411.713650761 x = -1411.713650761 Simplifying x = -1411.713650761

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1416.713650761, -1411.713650761}

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