x^2+10x=230

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Solution for x^2+10x=230 equation:


Simplifying
x2 + 10x = 230

Reorder the terms:
10x + x2 = 230

Solving
10x + x2 = 230

Solving for variable 'x'.

Reorder the terms:
-230 + 10x + x2 = 230 + -230

Combine like terms: 230 + -230 = 0
-230 + 10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '230' to each side of the equation.
-230 + 10x + 230 + x2 = 0 + 230

Reorder the terms:
-230 + 230 + 10x + x2 = 0 + 230

Combine like terms: -230 + 230 = 0
0 + 10x + x2 = 0 + 230
10x + x2 = 0 + 230

Combine like terms: 0 + 230 = 230
10x + x2 = 230

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 = 230 + 25

Reorder the terms:
25 + 10x + x2 = 230 + 25

Combine like terms: 230 + 25 = 255
25 + 10x + x2 = 255

Factor a perfect square on the left side:
(x + 5)(x + 5) = 255

Calculate the square root of the right side: 15.968719423

Break this problem into two subproblems by setting 
(x + 5) equal to 15.968719423 and -15.968719423.

Subproblem 1

x + 5 = 15.968719423 Simplifying x + 5 = 15.968719423 Reorder the terms: 5 + x = 15.968719423 Solving 5 + x = 15.968719423 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 = 15.968719423 + -5 Combine like terms: 5 + -5 = 0 0 + x = 15.968719423 + -5 x = 15.968719423 + -5 Combine like terms: 15.968719423 + -5 = 10.968719423 x = 10.968719423 Simplifying x = 10.968719423

Subproblem 2

x + 5 = -15.968719423 Simplifying x + 5 = -15.968719423 Reorder the terms: 5 + x = -15.968719423 Solving 5 + x = -15.968719423 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 = -15.968719423 + -5 Combine like terms: 5 + -5 = 0 0 + x = -15.968719423 + -5 x = -15.968719423 + -5 Combine like terms: -15.968719423 + -5 = -20.968719423 x = -20.968719423 Simplifying x = -20.968719423

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.968719423, -20.968719423}

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