0=9x^2-22x+10

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Solution for 0=9x^2-22x+10 equation:


Simplifying
0 = 9x2 + -22x + 10

Reorder the terms:
0 = 10 + -22x + 9x2

Solving
0 = 10 + -22x + 9x2

Solving for variable 'x'.

Combine like terms: 0 + -10 = -10
-10 + 22x + -9x2 = 10 + -22x + 9x2 + -10 + 22x + -9x2

Reorder the terms:
-10 + 22x + -9x2 = 10 + -10 + -22x + 22x + 9x2 + -9x2

Combine like terms: 10 + -10 = 0
-10 + 22x + -9x2 = 0 + -22x + 22x + 9x2 + -9x2
-10 + 22x + -9x2 = -22x + 22x + 9x2 + -9x2

Combine like terms: -22x + 22x = 0
-10 + 22x + -9x2 = 0 + 9x2 + -9x2
-10 + 22x + -9x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
-10 + 22x + -9x2 = 0

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

Divide each side by '-9'.
1.111111111 + -2.444444444x + x2 = 0

Move the constant term to the right:

Add '-1.111111111' to each side of the equation.
1.111111111 + -2.444444444x + -1.111111111 + x2 = 0 + -1.111111111

Reorder the terms:
1.111111111 + -1.111111111 + -2.444444444x + x2 = 0 + -1.111111111

Combine like terms: 1.111111111 + -1.111111111 = 0.000000000
0.000000000 + -2.444444444x + x2 = 0 + -1.111111111
-2.444444444x + x2 = 0 + -1.111111111

Combine like terms: 0 + -1.111111111 = -1.111111111
-2.444444444x + x2 = -1.111111111

The x term is -2.444444444x.  Take half its coefficient (-1.222222222).
Square it (1.493827160) and add it to both sides.

Add '1.493827160' to each side of the equation.
-2.444444444x + 1.493827160 + x2 = -1.111111111 + 1.493827160

Reorder the terms:
1.493827160 + -2.444444444x + x2 = -1.111111111 + 1.493827160

Combine like terms: -1.111111111 + 1.493827160 = 0.382716049
1.493827160 + -2.444444444x + x2 = 0.382716049

Factor a perfect square on the left side:
(x + -1.222222222)(x + -1.222222222) = 0.382716049

Calculate the square root of the right side: 0.618640484

Break this problem into two subproblems by setting 
(x + -1.222222222) equal to 0.618640484 and -0.618640484.

Subproblem 1

x + -1.222222222 = 0.618640484 Simplifying x + -1.222222222 = 0.618640484 Reorder the terms: -1.222222222 + x = 0.618640484 Solving -1.222222222 + x = 0.618640484 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.222222222' to each side of the equation. -1.222222222 + 1.222222222 + x = 0.618640484 + 1.222222222 Combine like terms: -1.222222222 + 1.222222222 = 0.000000000 0.000000000 + x = 0.618640484 + 1.222222222 x = 0.618640484 + 1.222222222 Combine like terms: 0.618640484 + 1.222222222 = 1.840862706 x = 1.840862706 Simplifying x = 1.840862706

Subproblem 2

x + -1.222222222 = -0.618640484 Simplifying x + -1.222222222 = -0.618640484 Reorder the terms: -1.222222222 + x = -0.618640484 Solving -1.222222222 + x = -0.618640484 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.222222222' to each side of the equation. -1.222222222 + 1.222222222 + x = -0.618640484 + 1.222222222 Combine like terms: -1.222222222 + 1.222222222 = 0.000000000 0.000000000 + x = -0.618640484 + 1.222222222 x = -0.618640484 + 1.222222222 Combine like terms: -0.618640484 + 1.222222222 = 0.603581738 x = 0.603581738 Simplifying x = 0.603581738

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.840862706, 0.603581738}

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