17x^2+3x-13=0

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Solution for 17x^2+3x-13=0 equation:


Simplifying
17x2 + 3x + -13 = 0

Reorder the terms:
-13 + 3x + 17x2 = 0

Solving
-13 + 3x + 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'.
-0.7647058824 + 0.1764705882x + x2 = 0

Move the constant term to the right:

Add '0.7647058824' to each side of the equation.
-0.7647058824 + 0.1764705882x + 0.7647058824 + x2 = 0 + 0.7647058824

Reorder the terms:
-0.7647058824 + 0.7647058824 + 0.1764705882x + x2 = 0 + 0.7647058824

Combine like terms: -0.7647058824 + 0.7647058824 = 0.0000000000
0.0000000000 + 0.1764705882x + x2 = 0 + 0.7647058824
0.1764705882x + x2 = 0 + 0.7647058824

Combine like terms: 0 + 0.7647058824 = 0.7647058824
0.1764705882x + x2 = 0.7647058824

The x term is 0.1764705882x.  Take half its coefficient (0.0882352941).
Square it (0.007785467125) and add it to both sides.

Add '0.007785467125' to each side of the equation.
0.1764705882x + 0.007785467125 + x2 = 0.7647058824 + 0.007785467125

Reorder the terms:
0.007785467125 + 0.1764705882x + x2 = 0.7647058824 + 0.007785467125

Combine like terms: 0.7647058824 + 0.007785467125 = 0.772491349525
0.007785467125 + 0.1764705882x + x2 = 0.772491349525

Factor a perfect square on the left side:
(x + 0.0882352941)(x + 0.0882352941) = 0.772491349525

Calculate the square root of the right side: 0.87891487

Break this problem into two subproblems by setting 
(x + 0.0882352941) equal to 0.87891487 and -0.87891487.

Subproblem 1

x + 0.0882352941 = 0.87891487 Simplifying x + 0.0882352941 = 0.87891487 Reorder the terms: 0.0882352941 + x = 0.87891487 Solving 0.0882352941 + x = 0.87891487 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0882352941' to each side of the equation. 0.0882352941 + -0.0882352941 + x = 0.87891487 + -0.0882352941 Combine like terms: 0.0882352941 + -0.0882352941 = 0.0000000000 0.0000000000 + x = 0.87891487 + -0.0882352941 x = 0.87891487 + -0.0882352941 Combine like terms: 0.87891487 + -0.0882352941 = 0.7906795759 x = 0.7906795759 Simplifying x = 0.7906795759

Subproblem 2

x + 0.0882352941 = -0.87891487 Simplifying x + 0.0882352941 = -0.87891487 Reorder the terms: 0.0882352941 + x = -0.87891487 Solving 0.0882352941 + x = -0.87891487 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0882352941' to each side of the equation. 0.0882352941 + -0.0882352941 + x = -0.87891487 + -0.0882352941 Combine like terms: 0.0882352941 + -0.0882352941 = 0.0000000000 0.0000000000 + x = -0.87891487 + -0.0882352941 x = -0.87891487 + -0.0882352941 Combine like terms: -0.87891487 + -0.0882352941 = -0.9671501641 x = -0.9671501641 Simplifying x = -0.9671501641

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.7906795759, -0.9671501641}

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