x^2-5x-10000000=0

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Solution for x^2-5x-10000000=0 equation:


Simplifying
x2 + -5x + -10000000 = 0

Reorder the terms:
-10000000 + -5x + x2 = 0

Solving
-10000000 + -5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '10000000' to each side of the equation.
-10000000 + -5x + 10000000 + x2 = 0 + 10000000

Reorder the terms:
-10000000 + 10000000 + -5x + x2 = 0 + 10000000

Combine like terms: -10000000 + 10000000 = 0
0 + -5x + x2 = 0 + 10000000
-5x + x2 = 0 + 10000000

Combine like terms: 0 + 10000000 = 10000000
-5x + x2 = 10000000

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 = 10000000 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 10000000 + 6.25

Combine like terms: 10000000 + 6.25 = 10000006.25
6.25 + -5x + x2 = 10000006.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 10000006.25

Calculate the square root of the right side: 3162.27864838

Break this problem into two subproblems by setting 
(x + -2.5) equal to 3162.27864838 and -3162.27864838.

Subproblem 1

x + -2.5 = 3162.27864838 Simplifying x + -2.5 = 3162.27864838 Reorder the terms: -2.5 + x = 3162.27864838 Solving -2.5 + x = 3162.27864838 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 = 3162.27864838 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 3162.27864838 + 2.5 x = 3162.27864838 + 2.5 Combine like terms: 3162.27864838 + 2.5 = 3164.77864838 x = 3164.77864838 Simplifying x = 3164.77864838

Subproblem 2

x + -2.5 = -3162.27864838 Simplifying x + -2.5 = -3162.27864838 Reorder the terms: -2.5 + x = -3162.27864838 Solving -2.5 + x = -3162.27864838 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 = -3162.27864838 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -3162.27864838 + 2.5 x = -3162.27864838 + 2.5 Combine like terms: -3162.27864838 + 2.5 = -3159.77864838 x = -3159.77864838 Simplifying x = -3159.77864838

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3164.77864838, -3159.77864838}

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