2x^2-11x^2+17x-6=0

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Solution for 2x^2-11x^2+17x-6=0 equation:


Simplifying
2x2 + -11x2 + 17x + -6 = 0

Reorder the terms:
-6 + 17x + 2x2 + -11x2 = 0

Combine like terms: 2x2 + -11x2 = -9x2
-6 + 17x + -9x2 = 0

Solving
-6 + 17x + -9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
0.6666666667 + -1.888888889x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + -1.888888889x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + -1.888888889x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + -1.888888889x + x2 = 0 + -0.6666666667
-1.888888889x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
-1.888888889x + x2 = -0.6666666667

The x term is -1.888888889x.  Take half its coefficient (-0.9444444445).
Square it (0.8919753087) and add it to both sides.

Add '0.8919753087' to each side of the equation.
-1.888888889x + 0.8919753087 + x2 = -0.6666666667 + 0.8919753087

Reorder the terms:
0.8919753087 + -1.888888889x + x2 = -0.6666666667 + 0.8919753087

Combine like terms: -0.6666666667 + 0.8919753087 = 0.225308642
0.8919753087 + -1.888888889x + x2 = 0.225308642

Factor a perfect square on the left side:
(x + -0.9444444445)(x + -0.9444444445) = 0.225308642

Calculate the square root of the right side: 0.474666875

Break this problem into two subproblems by setting 
(x + -0.9444444445) equal to 0.474666875 and -0.474666875.

Subproblem 1

x + -0.9444444445 = 0.474666875 Simplifying x + -0.9444444445 = 0.474666875 Reorder the terms: -0.9444444445 + x = 0.474666875 Solving -0.9444444445 + x = 0.474666875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9444444445' to each side of the equation. -0.9444444445 + 0.9444444445 + x = 0.474666875 + 0.9444444445 Combine like terms: -0.9444444445 + 0.9444444445 = 0.0000000000 0.0000000000 + x = 0.474666875 + 0.9444444445 x = 0.474666875 + 0.9444444445 Combine like terms: 0.474666875 + 0.9444444445 = 1.4191113195 x = 1.4191113195 Simplifying x = 1.4191113195

Subproblem 2

x + -0.9444444445 = -0.474666875 Simplifying x + -0.9444444445 = -0.474666875 Reorder the terms: -0.9444444445 + x = -0.474666875 Solving -0.9444444445 + x = -0.474666875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9444444445' to each side of the equation. -0.9444444445 + 0.9444444445 + x = -0.474666875 + 0.9444444445 Combine like terms: -0.9444444445 + 0.9444444445 = 0.0000000000 0.0000000000 + x = -0.474666875 + 0.9444444445 x = -0.474666875 + 0.9444444445 Combine like terms: -0.474666875 + 0.9444444445 = 0.4697775695 x = 0.4697775695 Simplifying x = 0.4697775695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.4191113195, 0.4697775695}

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