18x^2-17x+1=0

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Solution for 18x^2-17x+1=0 equation:


Simplifying
18x2 + -17x + 1 = 0

Reorder the terms:
1 + -17x + 18x2 = 0

Solving
1 + -17x + 18x2 = 0

Solving for variable 'x'.

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

Divide each side by '18'.
0.05555555556 + -0.9444444444x + x2 = 0

Move the constant term to the right:

Add '-0.05555555556' to each side of the equation.
0.05555555556 + -0.9444444444x + -0.05555555556 + x2 = 0 + -0.05555555556

Reorder the terms:
0.05555555556 + -0.05555555556 + -0.9444444444x + x2 = 0 + -0.05555555556

Combine like terms: 0.05555555556 + -0.05555555556 = 0.00000000000
0.00000000000 + -0.9444444444x + x2 = 0 + -0.05555555556
-0.9444444444x + x2 = 0 + -0.05555555556

Combine like terms: 0 + -0.05555555556 = -0.05555555556
-0.9444444444x + x2 = -0.05555555556

The x term is -0.9444444444x.  Take half its coefficient (-0.4722222222).
Square it (0.2229938271) and add it to both sides.

Add '0.2229938271' to each side of the equation.
-0.9444444444x + 0.2229938271 + x2 = -0.05555555556 + 0.2229938271

Reorder the terms:
0.2229938271 + -0.9444444444x + x2 = -0.05555555556 + 0.2229938271

Combine like terms: -0.05555555556 + 0.2229938271 = 0.16743827154
0.2229938271 + -0.9444444444x + x2 = 0.16743827154

Factor a perfect square on the left side:
(x + -0.4722222222)(x + -0.4722222222) = 0.16743827154

Calculate the square root of the right side: 0.409192218

Break this problem into two subproblems by setting 
(x + -0.4722222222) equal to 0.409192218 and -0.409192218.

Subproblem 1

x + -0.4722222222 = 0.409192218 Simplifying x + -0.4722222222 = 0.409192218 Reorder the terms: -0.4722222222 + x = 0.409192218 Solving -0.4722222222 + x = 0.409192218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4722222222' to each side of the equation. -0.4722222222 + 0.4722222222 + x = 0.409192218 + 0.4722222222 Combine like terms: -0.4722222222 + 0.4722222222 = 0.0000000000 0.0000000000 + x = 0.409192218 + 0.4722222222 x = 0.409192218 + 0.4722222222 Combine like terms: 0.409192218 + 0.4722222222 = 0.8814144402 x = 0.8814144402 Simplifying x = 0.8814144402

Subproblem 2

x + -0.4722222222 = -0.409192218 Simplifying x + -0.4722222222 = -0.409192218 Reorder the terms: -0.4722222222 + x = -0.409192218 Solving -0.4722222222 + x = -0.409192218 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4722222222' to each side of the equation. -0.4722222222 + 0.4722222222 + x = -0.409192218 + 0.4722222222 Combine like terms: -0.4722222222 + 0.4722222222 = 0.0000000000 0.0000000000 + x = -0.409192218 + 0.4722222222 x = -0.409192218 + 0.4722222222 Combine like terms: -0.409192218 + 0.4722222222 = 0.0630300042 x = 0.0630300042 Simplifying x = 0.0630300042

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8814144402, 0.0630300042}

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