x^2+10x-89=0

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Solution for x^2+10x-89=0 equation:


Simplifying
x2 + 10x + -89 = 0

Reorder the terms:
-89 + 10x + x2 = 0

Solving
-89 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '89' to each side of the equation.
-89 + 10x + 89 + x2 = 0 + 89

Reorder the terms:
-89 + 89 + 10x + x2 = 0 + 89

Combine like terms: -89 + 89 = 0
0 + 10x + x2 = 0 + 89
10x + x2 = 0 + 89

Combine like terms: 0 + 89 = 89
10x + x2 = 89

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 = 89 + 25

Reorder the terms:
25 + 10x + x2 = 89 + 25

Combine like terms: 89 + 25 = 114
25 + 10x + x2 = 114

Factor a perfect square on the left side:
(x + 5)(x + 5) = 114

Calculate the square root of the right side: 10.677078252

Break this problem into two subproblems by setting 
(x + 5) equal to 10.677078252 and -10.677078252.

Subproblem 1

x + 5 = 10.677078252 Simplifying x + 5 = 10.677078252 Reorder the terms: 5 + x = 10.677078252 Solving 5 + x = 10.677078252 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 = 10.677078252 + -5 Combine like terms: 5 + -5 = 0 0 + x = 10.677078252 + -5 x = 10.677078252 + -5 Combine like terms: 10.677078252 + -5 = 5.677078252 x = 5.677078252 Simplifying x = 5.677078252

Subproblem 2

x + 5 = -10.677078252 Simplifying x + 5 = -10.677078252 Reorder the terms: 5 + x = -10.677078252 Solving 5 + x = -10.677078252 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 = -10.677078252 + -5 Combine like terms: 5 + -5 = 0 0 + x = -10.677078252 + -5 x = -10.677078252 + -5 Combine like terms: -10.677078252 + -5 = -15.677078252 x = -15.677078252 Simplifying x = -15.677078252

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.677078252, -15.677078252}

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