x^2+10x-8000=0

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Solution for x^2+10x-8000=0 equation:


Simplifying
x2 + 10x + -8000 = 0

Reorder the terms:
-8000 + 10x + x2 = 0

Solving
-8000 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '8000' to each side of the equation.
-8000 + 10x + 8000 + x2 = 0 + 8000

Reorder the terms:
-8000 + 8000 + 10x + x2 = 0 + 8000

Combine like terms: -8000 + 8000 = 0
0 + 10x + x2 = 0 + 8000
10x + x2 = 0 + 8000

Combine like terms: 0 + 8000 = 8000
10x + x2 = 8000

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 8000 + 25

Reorder the terms:
25 + 10x + x2 = 8000 + 25

Combine like terms: 8000 + 25 = 8025
25 + 10x + x2 = 8025

Factor a perfect square on the left side:
(x + 5)(x + 5) = 8025

Calculate the square root of the right side: 89.582364336

Break this problem into two subproblems by setting 
(x + 5) equal to 89.582364336 and -89.582364336.

Subproblem 1

x + 5 = 89.582364336 Simplifying x + 5 = 89.582364336 Reorder the terms: 5 + x = 89.582364336 Solving 5 + x = 89.582364336 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 89.582364336 + -5 Combine like terms: 5 + -5 = 0 0 + x = 89.582364336 + -5 x = 89.582364336 + -5 Combine like terms: 89.582364336 + -5 = 84.582364336 x = 84.582364336 Simplifying x = 84.582364336

Subproblem 2

x + 5 = -89.582364336 Simplifying x + 5 = -89.582364336 Reorder the terms: 5 + x = -89.582364336 Solving 5 + x = -89.582364336 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -89.582364336 + -5 Combine like terms: 5 + -5 = 0 0 + x = -89.582364336 + -5 x = -89.582364336 + -5 Combine like terms: -89.582364336 + -5 = -94.582364336 x = -94.582364336 Simplifying x = -94.582364336

Solution

The solution to the problem is based on the solutions from the subproblems. x = {84.582364336, -94.582364336}

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