5x+x^2=110

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Solution for 5x+x^2=110 equation:


Simplifying
5x + x2 = 110

Solving
5x + x2 = 110

Solving for variable 'x'.

Reorder the terms:
-110 + 5x + x2 = 110 + -110

Combine like terms: 110 + -110 = 0
-110 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '110' to each side of the equation.
-110 + 5x + 110 + x2 = 0 + 110

Reorder the terms:
-110 + 110 + 5x + x2 = 0 + 110

Combine like terms: -110 + 110 = 0
0 + 5x + x2 = 0 + 110
5x + x2 = 0 + 110

Combine like terms: 0 + 110 = 110
5x + x2 = 110

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 110 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 110 + 6.25

Combine like terms: 110 + 6.25 = 116.25
6.25 + 5x + x2 = 116.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 116.25

Calculate the square root of the right side: 10.781929326

Break this problem into two subproblems by setting 
(x + 2.5) equal to 10.781929326 and -10.781929326.

Subproblem 1

x + 2.5 = 10.781929326 Simplifying x + 2.5 = 10.781929326 Reorder the terms: 2.5 + x = 10.781929326 Solving 2.5 + x = 10.781929326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 10.781929326 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 10.781929326 + -2.5 x = 10.781929326 + -2.5 Combine like terms: 10.781929326 + -2.5 = 8.281929326 x = 8.281929326 Simplifying x = 8.281929326

Subproblem 2

x + 2.5 = -10.781929326 Simplifying x + 2.5 = -10.781929326 Reorder the terms: 2.5 + x = -10.781929326 Solving 2.5 + x = -10.781929326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -10.781929326 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -10.781929326 + -2.5 x = -10.781929326 + -2.5 Combine like terms: -10.781929326 + -2.5 = -13.281929326 x = -13.281929326 Simplifying x = -13.281929326

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.281929326, -13.281929326}

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