6x^2-17x-2=0

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Solution for 6x^2-17x-2=0 equation:


Simplifying
6x2 + -17x + -2 = 0

Reorder the terms:
-2 + -17x + 6x2 = 0

Solving
-2 + -17x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-0.3333333333 + -2.833333333x + x2 = 0

Move the constant term to the right:

Add '0.3333333333' to each side of the equation.
-0.3333333333 + -2.833333333x + 0.3333333333 + x2 = 0 + 0.3333333333

Reorder the terms:
-0.3333333333 + 0.3333333333 + -2.833333333x + x2 = 0 + 0.3333333333

Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000
0.0000000000 + -2.833333333x + x2 = 0 + 0.3333333333
-2.833333333x + x2 = 0 + 0.3333333333

Combine like terms: 0 + 0.3333333333 = 0.3333333333
-2.833333333x + x2 = 0.3333333333

The x term is -2.833333333x.  Take half its coefficient (-1.416666667).
Square it (2.006944445) and add it to both sides.

Add '2.006944445' to each side of the equation.
-2.833333333x + 2.006944445 + x2 = 0.3333333333 + 2.006944445

Reorder the terms:
2.006944445 + -2.833333333x + x2 = 0.3333333333 + 2.006944445

Combine like terms: 0.3333333333 + 2.006944445 = 2.3402777783
2.006944445 + -2.833333333x + x2 = 2.3402777783

Factor a perfect square on the left side:
(x + -1.416666667)(x + -1.416666667) = 2.3402777783

Calculate the square root of the right side: 1.529796646

Break this problem into two subproblems by setting 
(x + -1.416666667) equal to 1.529796646 and -1.529796646.

Subproblem 1

x + -1.416666667 = 1.529796646 Simplifying x + -1.416666667 = 1.529796646 Reorder the terms: -1.416666667 + x = 1.529796646 Solving -1.416666667 + x = 1.529796646 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.416666667' to each side of the equation. -1.416666667 + 1.416666667 + x = 1.529796646 + 1.416666667 Combine like terms: -1.416666667 + 1.416666667 = 0.000000000 0.000000000 + x = 1.529796646 + 1.416666667 x = 1.529796646 + 1.416666667 Combine like terms: 1.529796646 + 1.416666667 = 2.946463313 x = 2.946463313 Simplifying x = 2.946463313

Subproblem 2

x + -1.416666667 = -1.529796646 Simplifying x + -1.416666667 = -1.529796646 Reorder the terms: -1.416666667 + x = -1.529796646 Solving -1.416666667 + x = -1.529796646 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.416666667' to each side of the equation. -1.416666667 + 1.416666667 + x = -1.529796646 + 1.416666667 Combine like terms: -1.416666667 + 1.416666667 = 0.000000000 0.000000000 + x = -1.529796646 + 1.416666667 x = -1.529796646 + 1.416666667 Combine like terms: -1.529796646 + 1.416666667 = -0.113129979 x = -0.113129979 Simplifying x = -0.113129979

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.946463313, -0.113129979}

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