-6x^2-17x+7=0

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Solution for -6x^2-17x+7=0 equation:


Simplifying
-6x2 + -17x + 7 = 0

Reorder the terms:
7 + -17x + -6x2 = 0

Solving
7 + -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'.
-1.166666667 + 2.833333333x + x2 = 0

Move the constant term to the right:

Add '1.166666667' to each side of the equation.
-1.166666667 + 2.833333333x + 1.166666667 + x2 = 0 + 1.166666667

Reorder the terms:
-1.166666667 + 1.166666667 + 2.833333333x + x2 = 0 + 1.166666667

Combine like terms: -1.166666667 + 1.166666667 = 0.000000000
0.000000000 + 2.833333333x + x2 = 0 + 1.166666667
2.833333333x + x2 = 0 + 1.166666667

Combine like terms: 0 + 1.166666667 = 1.166666667
2.833333333x + x2 = 1.166666667

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 = 1.166666667 + 2.006944445

Reorder the terms:
2.006944445 + 2.833333333x + x2 = 1.166666667 + 2.006944445

Combine like terms: 1.166666667 + 2.006944445 = 3.173611112
2.006944445 + 2.833333333x + x2 = 3.173611112

Factor a perfect square on the left side:
(x + 1.416666667)(x + 1.416666667) = 3.173611112

Calculate the square root of the right side: 1.781463194

Break this problem into two subproblems by setting 
(x + 1.416666667) equal to 1.781463194 and -1.781463194.

Subproblem 1

x + 1.416666667 = 1.781463194 Simplifying x + 1.416666667 = 1.781463194 Reorder the terms: 1.416666667 + x = 1.781463194 Solving 1.416666667 + x = 1.781463194 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 = 1.781463194 + -1.416666667 Combine like terms: 1.416666667 + -1.416666667 = 0.000000000 0.000000000 + x = 1.781463194 + -1.416666667 x = 1.781463194 + -1.416666667 Combine like terms: 1.781463194 + -1.416666667 = 0.364796527 x = 0.364796527 Simplifying x = 0.364796527

Subproblem 2

x + 1.416666667 = -1.781463194 Simplifying x + 1.416666667 = -1.781463194 Reorder the terms: 1.416666667 + x = -1.781463194 Solving 1.416666667 + x = -1.781463194 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 = -1.781463194 + -1.416666667 Combine like terms: 1.416666667 + -1.416666667 = 0.000000000 0.000000000 + x = -1.781463194 + -1.416666667 x = -1.781463194 + -1.416666667 Combine like terms: -1.781463194 + -1.416666667 = -3.198129861 x = -3.198129861 Simplifying x = -3.198129861

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.364796527, -3.198129861}

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