3x^2+17x-5.5=0

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Solution for 3x^2+17x-5.5=0 equation: 


Simplifying
3x2 + 17x + -5.5 = 0

Reorder the terms:
-5.5 + 17x + 3x2 = 0

Solving
-5.5 + 17x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-1.833333333 + 5.666666667x + x2 = 0

Move the constant term to the right:

Add '1.833333333' to each side of the equation.
-1.833333333 + 5.666666667x + 1.833333333 + x2 = 0 + 1.833333333

Reorder the terms:
-1.833333333 + 1.833333333 + 5.666666667x + x2 = 0 + 1.833333333

Combine like terms: -1.833333333 + 1.833333333 = 0.000000000
0.000000000 + 5.666666667x + x2 = 0 + 1.833333333
5.666666667x + x2 = 0 + 1.833333333

Combine like terms: 0 + 1.833333333 = 1.833333333
5.666666667x + x2 = 1.833333333

The x term is 5.666666667x.  Take half its coefficient (2.833333334).
Square it (8.027777782) and add it to both sides.

Add '8.027777782' to each side of the equation.
5.666666667x + 8.027777782 + x2 = 1.833333333 + 8.027777782

Reorder the terms:
8.027777782 + 5.666666667x + x2 = 1.833333333 + 8.027777782

Combine like terms: 1.833333333 + 8.027777782 = 9.861111115
8.027777782 + 5.666666667x + x2 = 9.861111115

Factor a perfect square on the left side:
(x + 2.833333334)(x + 2.833333334) = 9.861111115

Calculate the square root of the right side: 3.140240614

Break this problem into two subproblems by setting 
(x + 2.833333334) equal to 3.140240614 and -3.140240614.


Subproblem 1
x + 2.833333334 = 3.140240614

Simplifying
x + 2.833333334 = 3.140240614

Reorder the terms:
2.833333334 + x = 3.140240614

Solving
2.833333334 + x = 3.140240614

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.833333334' to each side of the equation.
2.833333334 + -2.833333334 + x = 3.140240614 + -2.833333334

Combine like terms: 2.833333334 + -2.833333334 = 0.000000000
0.000000000 + x = 3.140240614 + -2.833333334
x = 3.140240614 + -2.833333334

Combine like terms: 3.140240614 + -2.833333334 = 0.30690728
x = 0.30690728

Simplifying
x = 0.30690728


Subproblem 2
x + 2.833333334 = -3.140240614

Simplifying
x + 2.833333334 = -3.140240614

Reorder the terms:
2.833333334 + x = -3.140240614

Solving
2.833333334 + x = -3.140240614

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.833333334' to each side of the equation.
2.833333334 + -2.833333334 + x = -3.140240614 + -2.833333334

Combine like terms: 2.833333334 + -2.833333334 = 0.000000000
0.000000000 + x = -3.140240614 + -2.833333334
x = -3.140240614 + -2.833333334

Combine like terms: -3.140240614 + -2.833333334 = -5.973573948
x = -5.973573948

Simplifying
x = -5.973573948


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {0.30690728, -5.973573948}

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