x^2+10x-10=180

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Solution for x^2+10x-10=180 equation:


Simplifying
x2 + 10x + -10 = 180

Reorder the terms:
-10 + 10x + x2 = 180

Solving
-10 + 10x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
-10 + -180 + 10x + x2 = 180 + -180

Combine like terms: -10 + -180 = -190
-190 + 10x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-190 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '190' to each side of the equation.
-190 + 10x + 190 + x2 = 0 + 190

Reorder the terms:
-190 + 190 + 10x + x2 = 0 + 190

Combine like terms: -190 + 190 = 0
0 + 10x + x2 = 0 + 190
10x + x2 = 0 + 190

Combine like terms: 0 + 190 = 190
10x + x2 = 190

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 = 190 + 25

Reorder the terms:
25 + 10x + x2 = 190 + 25

Combine like terms: 190 + 25 = 215
25 + 10x + x2 = 215

Factor a perfect square on the left side:
(x + 5)(x + 5) = 215

Calculate the square root of the right side: 14.662878299

Break this problem into two subproblems by setting 
(x + 5) equal to 14.662878299 and -14.662878299.

Subproblem 1

x + 5 = 14.662878299 Simplifying x + 5 = 14.662878299 Reorder the terms: 5 + x = 14.662878299 Solving 5 + x = 14.662878299 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 = 14.662878299 + -5 Combine like terms: 5 + -5 = 0 0 + x = 14.662878299 + -5 x = 14.662878299 + -5 Combine like terms: 14.662878299 + -5 = 9.662878299 x = 9.662878299 Simplifying x = 9.662878299

Subproblem 2

x + 5 = -14.662878299 Simplifying x + 5 = -14.662878299 Reorder the terms: 5 + x = -14.662878299 Solving 5 + x = -14.662878299 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 = -14.662878299 + -5 Combine like terms: 5 + -5 = 0 0 + x = -14.662878299 + -5 x = -14.662878299 + -5 Combine like terms: -14.662878299 + -5 = -19.662878299 x = -19.662878299 Simplifying x = -19.662878299

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.662878299, -19.662878299}

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