10x^2-30x+17=0

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Solution for 10x^2-30x+17=0 equation:


Simplifying
10x2 + -30x + 17 = 0

Reorder the terms:
17 + -30x + 10x2 = 0

Solving
17 + -30x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
1.7 + -3x + x2 = 0

Move the constant term to the right:

Add '-1.7' to each side of the equation.
1.7 + -3x + -1.7 + x2 = 0 + -1.7

Reorder the terms:
1.7 + -1.7 + -3x + x2 = 0 + -1.7

Combine like terms: 1.7 + -1.7 = 0.0
0.0 + -3x + x2 = 0 + -1.7
-3x + x2 = 0 + -1.7

Combine like terms: 0 + -1.7 = -1.7
-3x + x2 = -1.7

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = -1.7 + 2.25

Reorder the terms:
2.25 + -3x + x2 = -1.7 + 2.25

Combine like terms: -1.7 + 2.25 = 0.55
2.25 + -3x + x2 = 0.55

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 0.55

Calculate the square root of the right side: 0.741619849

Break this problem into two subproblems by setting 
(x + -1.5) equal to 0.741619849 and -0.741619849.

Subproblem 1

x + -1.5 = 0.741619849 Simplifying x + -1.5 = 0.741619849 Reorder the terms: -1.5 + x = 0.741619849 Solving -1.5 + x = 0.741619849 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 0.741619849 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 0.741619849 + 1.5 x = 0.741619849 + 1.5 Combine like terms: 0.741619849 + 1.5 = 2.241619849 x = 2.241619849 Simplifying x = 2.241619849

Subproblem 2

x + -1.5 = -0.741619849 Simplifying x + -1.5 = -0.741619849 Reorder the terms: -1.5 + x = -0.741619849 Solving -1.5 + x = -0.741619849 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -0.741619849 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -0.741619849 + 1.5 x = -0.741619849 + 1.5 Combine like terms: -0.741619849 + 1.5 = 0.758380151 x = 0.758380151 Simplifying x = 0.758380151

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.241619849, 0.758380151}

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