2x(5+3x)+x=32

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Solution for 2x(5+3x)+x=32 equation:


Simplifying
2x(5 + 3x) + x = 32
(5 * 2x + 3x * 2x) + x = 32
(10x + 6x2) + x = 32

Reorder the terms:
10x + x + 6x2 = 32

Combine like terms: 10x + x = 11x
11x + 6x2 = 32

Solving
11x + 6x2 = 32

Solving for variable 'x'.

Reorder the terms:
-32 + 11x + 6x2 = 32 + -32

Combine like terms: 32 + -32 = 0
-32 + 11x + 6x2 = 0

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

Divide each side by '6'.
-5.333333333 + 1.833333333x + x2 = 0

Move the constant term to the right:

Add '5.333333333' to each side of the equation.
-5.333333333 + 1.833333333x + 5.333333333 + x2 = 0 + 5.333333333

Reorder the terms:
-5.333333333 + 5.333333333 + 1.833333333x + x2 = 0 + 5.333333333

Combine like terms: -5.333333333 + 5.333333333 = 0.000000000
0.000000000 + 1.833333333x + x2 = 0 + 5.333333333
1.833333333x + x2 = 0 + 5.333333333

Combine like terms: 0 + 5.333333333 = 5.333333333
1.833333333x + x2 = 5.333333333

The x term is 1.833333333x.  Take half its coefficient (0.9166666665).
Square it (0.8402777775) and add it to both sides.

Add '0.8402777775' to each side of the equation.
1.833333333x + 0.8402777775 + x2 = 5.333333333 + 0.8402777775

Reorder the terms:
0.8402777775 + 1.833333333x + x2 = 5.333333333 + 0.8402777775

Combine like terms: 5.333333333 + 0.8402777775 = 6.1736111105
0.8402777775 + 1.833333333x + x2 = 6.1736111105

Factor a perfect square on the left side:
(x + 0.9166666665)(x + 0.9166666665) = 6.1736111105

Calculate the square root of the right side: 2.484675253

Break this problem into two subproblems by setting 
(x + 0.9166666665) equal to 2.484675253 and -2.484675253.

Subproblem 1

x + 0.9166666665 = 2.484675253 Simplifying x + 0.9166666665 = 2.484675253 Reorder the terms: 0.9166666665 + x = 2.484675253 Solving 0.9166666665 + x = 2.484675253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + x = 2.484675253 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + x = 2.484675253 + -0.9166666665 x = 2.484675253 + -0.9166666665 Combine like terms: 2.484675253 + -0.9166666665 = 1.5680085865 x = 1.5680085865 Simplifying x = 1.5680085865

Subproblem 2

x + 0.9166666665 = -2.484675253 Simplifying x + 0.9166666665 = -2.484675253 Reorder the terms: 0.9166666665 + x = -2.484675253 Solving 0.9166666665 + x = -2.484675253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + x = -2.484675253 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + x = -2.484675253 + -0.9166666665 x = -2.484675253 + -0.9166666665 Combine like terms: -2.484675253 + -0.9166666665 = -3.4013419195 x = -3.4013419195 Simplifying x = -3.4013419195

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.5680085865, -3.4013419195}

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