x^2+10x=360

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Solution for x^2+10x=360 equation:


Simplifying
x2 + 10x = 360

Reorder the terms:
10x + x2 = 360

Solving
10x + x2 = 360

Solving for variable 'x'.

Reorder the terms:
-360 + 10x + x2 = 360 + -360

Combine like terms: 360 + -360 = 0
-360 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '360' to each side of the equation.
-360 + 10x + 360 + x2 = 0 + 360

Reorder the terms:
-360 + 360 + 10x + x2 = 0 + 360

Combine like terms: -360 + 360 = 0
0 + 10x + x2 = 0 + 360
10x + x2 = 0 + 360

Combine like terms: 0 + 360 = 360
10x + x2 = 360

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 = 360 + 25

Reorder the terms:
25 + 10x + x2 = 360 + 25

Combine like terms: 360 + 25 = 385
25 + 10x + x2 = 385

Factor a perfect square on the left side:
(x + 5)(x + 5) = 385

Calculate the square root of the right side: 19.62141687

Break this problem into two subproblems by setting 
(x + 5) equal to 19.62141687 and -19.62141687.

Subproblem 1

x + 5 = 19.62141687 Simplifying x + 5 = 19.62141687 Reorder the terms: 5 + x = 19.62141687 Solving 5 + x = 19.62141687 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 = 19.62141687 + -5 Combine like terms: 5 + -5 = 0 0 + x = 19.62141687 + -5 x = 19.62141687 + -5 Combine like terms: 19.62141687 + -5 = 14.62141687 x = 14.62141687 Simplifying x = 14.62141687

Subproblem 2

x + 5 = -19.62141687 Simplifying x + 5 = -19.62141687 Reorder the terms: 5 + x = -19.62141687 Solving 5 + x = -19.62141687 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 = -19.62141687 + -5 Combine like terms: 5 + -5 = 0 0 + x = -19.62141687 + -5 x = -19.62141687 + -5 Combine like terms: -19.62141687 + -5 = -24.62141687 x = -24.62141687 Simplifying x = -24.62141687

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.62141687, -24.62141687}

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