17x^2-49x+20=0

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Solution for 17x^2-49x+20=0 equation:


Simplifying
17x2 + -49x + 20 = 0

Reorder the terms:
20 + -49x + 17x2 = 0

Solving
20 + -49x + 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'.
1.176470588 + -2.882352941x + x2 = 0

Move the constant term to the right:

Add '-1.176470588' to each side of the equation.
1.176470588 + -2.882352941x + -1.176470588 + x2 = 0 + -1.176470588

Reorder the terms:
1.176470588 + -1.176470588 + -2.882352941x + x2 = 0 + -1.176470588

Combine like terms: 1.176470588 + -1.176470588 = 0.000000000
0.000000000 + -2.882352941x + x2 = 0 + -1.176470588
-2.882352941x + x2 = 0 + -1.176470588

Combine like terms: 0 + -1.176470588 = -1.176470588
-2.882352941x + x2 = -1.176470588

The x term is -2.882352941x.  Take half its coefficient (-1.441176471).
Square it (2.076989621) and add it to both sides.

Add '2.076989621' to each side of the equation.
-2.882352941x + 2.076989621 + x2 = -1.176470588 + 2.076989621

Reorder the terms:
2.076989621 + -2.882352941x + x2 = -1.176470588 + 2.076989621

Combine like terms: -1.176470588 + 2.076989621 = 0.900519033
2.076989621 + -2.882352941x + x2 = 0.900519033

Factor a perfect square on the left side:
(x + -1.441176471)(x + -1.441176471) = 0.900519033

Calculate the square root of the right side: 0.948956813

Break this problem into two subproblems by setting 
(x + -1.441176471) equal to 0.948956813 and -0.948956813.

Subproblem 1

x + -1.441176471 = 0.948956813 Simplifying x + -1.441176471 = 0.948956813 Reorder the terms: -1.441176471 + x = 0.948956813 Solving -1.441176471 + x = 0.948956813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.441176471' to each side of the equation. -1.441176471 + 1.441176471 + x = 0.948956813 + 1.441176471 Combine like terms: -1.441176471 + 1.441176471 = 0.000000000 0.000000000 + x = 0.948956813 + 1.441176471 x = 0.948956813 + 1.441176471 Combine like terms: 0.948956813 + 1.441176471 = 2.390133284 x = 2.390133284 Simplifying x = 2.390133284

Subproblem 2

x + -1.441176471 = -0.948956813 Simplifying x + -1.441176471 = -0.948956813 Reorder the terms: -1.441176471 + x = -0.948956813 Solving -1.441176471 + x = -0.948956813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.441176471' to each side of the equation. -1.441176471 + 1.441176471 + x = -0.948956813 + 1.441176471 Combine like terms: -1.441176471 + 1.441176471 = 0.000000000 0.000000000 + x = -0.948956813 + 1.441176471 x = -0.948956813 + 1.441176471 Combine like terms: -0.948956813 + 1.441176471 = 0.492219658 x = 0.492219658 Simplifying x = 0.492219658

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.390133284, 0.492219658}

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