17x^2+39x+17=0

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Solution for 17x^2+39x+17=0 equation:


Simplifying
17x2 + 39x + 17 = 0

Reorder the terms:
17 + 39x + 17x2 = 0

Solving
17 + 39x + 17x2 = 0

Solving for variable 'x'.

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

Divide each side by '17'.
1 + 2.294117647x + x2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 2.294117647x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + 2.294117647x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2.294117647x + x2 = 0 + -1
2.294117647x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
2.294117647x + x2 = -1

The x term is 2.294117647x.  Take half its coefficient (1.147058824).
Square it (1.315743946) and add it to both sides.

Add '1.315743946' to each side of the equation.
2.294117647x + 1.315743946 + x2 = -1 + 1.315743946

Reorder the terms:
1.315743946 + 2.294117647x + x2 = -1 + 1.315743946

Combine like terms: -1 + 1.315743946 = 0.315743946
1.315743946 + 2.294117647x + x2 = 0.315743946

Factor a perfect square on the left side:
(x + 1.147058824)(x + 1.147058824) = 0.315743946

Calculate the square root of the right side: 0.561910977

Break this problem into two subproblems by setting 
(x + 1.147058824) equal to 0.561910977 and -0.561910977.

Subproblem 1

x + 1.147058824 = 0.561910977 Simplifying x + 1.147058824 = 0.561910977 Reorder the terms: 1.147058824 + x = 0.561910977 Solving 1.147058824 + x = 0.561910977 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.147058824' to each side of the equation. 1.147058824 + -1.147058824 + x = 0.561910977 + -1.147058824 Combine like terms: 1.147058824 + -1.147058824 = 0.000000000 0.000000000 + x = 0.561910977 + -1.147058824 x = 0.561910977 + -1.147058824 Combine like terms: 0.561910977 + -1.147058824 = -0.585147847 x = -0.585147847 Simplifying x = -0.585147847

Subproblem 2

x + 1.147058824 = -0.561910977 Simplifying x + 1.147058824 = -0.561910977 Reorder the terms: 1.147058824 + x = -0.561910977 Solving 1.147058824 + x = -0.561910977 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.147058824' to each side of the equation. 1.147058824 + -1.147058824 + x = -0.561910977 + -1.147058824 Combine like terms: 1.147058824 + -1.147058824 = 0.000000000 0.000000000 + x = -0.561910977 + -1.147058824 x = -0.561910977 + -1.147058824 Combine like terms: -0.561910977 + -1.147058824 = -1.708969801 x = -1.708969801 Simplifying x = -1.708969801

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.585147847, -1.708969801}

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