9x^2-45x+17=0

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Solution for 9x^2-45x+17=0 equation:


Simplifying
9x2 + -45x + 17 = 0

Reorder the terms:
17 + -45x + 9x2 = 0

Solving
17 + -45x + 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'.
1.888888889 + -5x + x2 = 0

Move the constant term to the right:

Add '-1.888888889' to each side of the equation.
1.888888889 + -5x + -1.888888889 + x2 = 0 + -1.888888889

Reorder the terms:
1.888888889 + -1.888888889 + -5x + x2 = 0 + -1.888888889

Combine like terms: 1.888888889 + -1.888888889 = 0.000000000
0.000000000 + -5x + x2 = 0 + -1.888888889
-5x + x2 = 0 + -1.888888889

Combine like terms: 0 + -1.888888889 = -1.888888889
-5x + x2 = -1.888888889

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -1.888888889 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -1.888888889 + 6.25

Combine like terms: -1.888888889 + 6.25 = 4.361111111
6.25 + -5x + x2 = 4.361111111

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 4.361111111

Calculate the square root of the right side: 2.088327348

Break this problem into two subproblems by setting 
(x + -2.5) equal to 2.088327348 and -2.088327348.

Subproblem 1

x + -2.5 = 2.088327348 Simplifying x + -2.5 = 2.088327348 Reorder the terms: -2.5 + x = 2.088327348 Solving -2.5 + x = 2.088327348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 2.088327348 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 2.088327348 + 2.5 x = 2.088327348 + 2.5 Combine like terms: 2.088327348 + 2.5 = 4.588327348 x = 4.588327348 Simplifying x = 4.588327348

Subproblem 2

x + -2.5 = -2.088327348 Simplifying x + -2.5 = -2.088327348 Reorder the terms: -2.5 + x = -2.088327348 Solving -2.5 + x = -2.088327348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -2.088327348 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -2.088327348 + 2.5 x = -2.088327348 + 2.5 Combine like terms: -2.088327348 + 2.5 = 0.411672652 x = 0.411672652 Simplifying x = 0.411672652

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.588327348, 0.411672652}

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