5x+x^2-186=0

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Solution for 5x+x^2-186=0 equation:


Simplifying
5x + x2 + -186 = 0

Reorder the terms:
-186 + 5x + x2 = 0

Solving
-186 + 5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '186' to each side of the equation.
-186 + 5x + 186 + x2 = 0 + 186

Reorder the terms:
-186 + 186 + 5x + x2 = 0 + 186

Combine like terms: -186 + 186 = 0
0 + 5x + x2 = 0 + 186
5x + x2 = 0 + 186

Combine like terms: 0 + 186 = 186
5x + x2 = 186

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 = 186 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 186 + 6.25

Combine like terms: 186 + 6.25 = 192.25
6.25 + 5x + x2 = 192.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 192.25

Calculate the square root of the right side: 13.865424624

Break this problem into two subproblems by setting 
(x + 2.5) equal to 13.865424624 and -13.865424624.

Subproblem 1

x + 2.5 = 13.865424624 Simplifying x + 2.5 = 13.865424624 Reorder the terms: 2.5 + x = 13.865424624 Solving 2.5 + x = 13.865424624 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 = 13.865424624 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 13.865424624 + -2.5 x = 13.865424624 + -2.5 Combine like terms: 13.865424624 + -2.5 = 11.365424624 x = 11.365424624 Simplifying x = 11.365424624

Subproblem 2

x + 2.5 = -13.865424624 Simplifying x + 2.5 = -13.865424624 Reorder the terms: 2.5 + x = -13.865424624 Solving 2.5 + x = -13.865424624 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 = -13.865424624 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -13.865424624 + -2.5 x = -13.865424624 + -2.5 Combine like terms: -13.865424624 + -2.5 = -16.365424624 x = -16.365424624 Simplifying x = -16.365424624

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.365424624, -16.365424624}

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