17x^2-13x-2=0

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


Simplifying
17x2 + -13x + -2 = 0

Reorder the terms:
-2 + -13x + 17x2 = 0

Solving
-2 + -13x + 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'.
-0.1176470588 + -0.7647058824x + x2 = 0

Move the constant term to the right:

Add '0.1176470588' to each side of the equation.
-0.1176470588 + -0.7647058824x + 0.1176470588 + x2 = 0 + 0.1176470588

Reorder the terms:
-0.1176470588 + 0.1176470588 + -0.7647058824x + x2 = 0 + 0.1176470588

Combine like terms: -0.1176470588 + 0.1176470588 = 0.0000000000
0.0000000000 + -0.7647058824x + x2 = 0 + 0.1176470588
-0.7647058824x + x2 = 0 + 0.1176470588

Combine like terms: 0 + 0.1176470588 = 0.1176470588
-0.7647058824x + x2 = 0.1176470588

The x term is -0.7647058824x.  Take half its coefficient (-0.3823529412).
Square it (0.1461937716) and add it to both sides.

Add '0.1461937716' to each side of the equation.
-0.7647058824x + 0.1461937716 + x2 = 0.1176470588 + 0.1461937716

Reorder the terms:
0.1461937716 + -0.7647058824x + x2 = 0.1176470588 + 0.1461937716

Combine like terms: 0.1176470588 + 0.1461937716 = 0.2638408304
0.1461937716 + -0.7647058824x + x2 = 0.2638408304

Factor a perfect square on the left side:
(x + -0.3823529412)(x + -0.3823529412) = 0.2638408304

Calculate the square root of the right side: 0.513654388

Break this problem into two subproblems by setting 
(x + -0.3823529412) equal to 0.513654388 and -0.513654388.

Subproblem 1

x + -0.3823529412 = 0.513654388 Simplifying x + -0.3823529412 = 0.513654388 Reorder the terms: -0.3823529412 + x = 0.513654388 Solving -0.3823529412 + x = 0.513654388 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3823529412' to each side of the equation. -0.3823529412 + 0.3823529412 + x = 0.513654388 + 0.3823529412 Combine like terms: -0.3823529412 + 0.3823529412 = 0.0000000000 0.0000000000 + x = 0.513654388 + 0.3823529412 x = 0.513654388 + 0.3823529412 Combine like terms: 0.513654388 + 0.3823529412 = 0.8960073292 x = 0.8960073292 Simplifying x = 0.8960073292

Subproblem 2

x + -0.3823529412 = -0.513654388 Simplifying x + -0.3823529412 = -0.513654388 Reorder the terms: -0.3823529412 + x = -0.513654388 Solving -0.3823529412 + x = -0.513654388 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3823529412' to each side of the equation. -0.3823529412 + 0.3823529412 + x = -0.513654388 + 0.3823529412 Combine like terms: -0.3823529412 + 0.3823529412 = 0.0000000000 0.0000000000 + x = -0.513654388 + 0.3823529412 x = -0.513654388 + 0.3823529412 Combine like terms: -0.513654388 + 0.3823529412 = -0.1313014468 x = -0.1313014468 Simplifying x = -0.1313014468

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8960073292, -0.1313014468}

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