360x^2+5x-36=0

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Solution for 360x^2+5x-36=0 equation:


Simplifying
360x2 + 5x + -36 = 0

Reorder the terms:
-36 + 5x + 360x2 = 0

Solving
-36 + 5x + 360x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
360 the coefficient of the squared term: 

Divide each side by '360'.
-0.1 + 0.01388888889x + x2 = 0

Move the constant term to the right:

Add '0.1' to each side of the equation.
-0.1 + 0.01388888889x + 0.1 + x2 = 0 + 0.1

Reorder the terms:
-0.1 + 0.1 + 0.01388888889x + x2 = 0 + 0.1

Combine like terms: -0.1 + 0.1 = 0.0
0.0 + 0.01388888889x + x2 = 0 + 0.1
0.01388888889x + x2 = 0 + 0.1

Combine like terms: 0 + 0.1 = 0.1
0.01388888889x + x2 = 0.1

The x term is 0.01388888889x.  Take half its coefficient (0.006944444445).
Square it (0.00004822530865) and add it to both sides.

Add '0.00004822530865' to each side of the equation.
0.01388888889x + 0.00004822530865 + x2 = 0.1 + 0.00004822530865

Reorder the terms:
0.00004822530865 + 0.01388888889x + x2 = 0.1 + 0.00004822530865

Combine like terms: 0.1 + 0.00004822530865 = 0.10004822530865
0.00004822530865 + 0.01388888889x + x2 = 0.10004822530865

Factor a perfect square on the left side:
(x + 0.006944444445)(x + 0.006944444445) = 0.10004822530865

Calculate the square root of the right side: 0.316304008

Break this problem into two subproblems by setting 
(x + 0.006944444445) equal to 0.316304008 and -0.316304008.

Subproblem 1

x + 0.006944444445 = 0.316304008 Simplifying x + 0.006944444445 = 0.316304008 Reorder the terms: 0.006944444445 + x = 0.316304008 Solving 0.006944444445 + x = 0.316304008 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.006944444445' to each side of the equation. 0.006944444445 + -0.006944444445 + x = 0.316304008 + -0.006944444445 Combine like terms: 0.006944444445 + -0.006944444445 = 0.000000000000 0.000000000000 + x = 0.316304008 + -0.006944444445 x = 0.316304008 + -0.006944444445 Combine like terms: 0.316304008 + -0.006944444445 = 0.309359563555 x = 0.309359563555 Simplifying x = 0.309359563555

Subproblem 2

x + 0.006944444445 = -0.316304008 Simplifying x + 0.006944444445 = -0.316304008 Reorder the terms: 0.006944444445 + x = -0.316304008 Solving 0.006944444445 + x = -0.316304008 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.006944444445' to each side of the equation. 0.006944444445 + -0.006944444445 + x = -0.316304008 + -0.006944444445 Combine like terms: 0.006944444445 + -0.006944444445 = 0.000000000000 0.000000000000 + x = -0.316304008 + -0.006944444445 x = -0.316304008 + -0.006944444445 Combine like terms: -0.316304008 + -0.006944444445 = -0.323248452445 x = -0.323248452445 Simplifying x = -0.323248452445

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.309359563555, -0.323248452445}

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