0=3x^2-22x+6

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Solution for 0=3x^2-22x+6 equation:


Simplifying
0 = 3x2 + -22x + 6

Reorder the terms:
0 = 6 + -22x + 3x2

Solving
0 = 6 + -22x + 3x2

Solving for variable 'x'.

Combine like terms: 0 + -6 = -6
-6 + 22x + -3x2 = 6 + -22x + 3x2 + -6 + 22x + -3x2

Reorder the terms:
-6 + 22x + -3x2 = 6 + -6 + -22x + 22x + 3x2 + -3x2

Combine like terms: 6 + -6 = 0
-6 + 22x + -3x2 = 0 + -22x + 22x + 3x2 + -3x2
-6 + 22x + -3x2 = -22x + 22x + 3x2 + -3x2

Combine like terms: -22x + 22x = 0
-6 + 22x + -3x2 = 0 + 3x2 + -3x2
-6 + 22x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-6 + 22x + -3x2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
2 + -7.333333333x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -7.333333333x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -7.333333333x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -7.333333333x + x2 = 0 + -2
-7.333333333x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-7.333333333x + x2 = -2

The x term is -7.333333333x.  Take half its coefficient (-3.666666667).
Square it (13.44444445) and add it to both sides.

Add '13.44444445' to each side of the equation.
-7.333333333x + 13.44444445 + x2 = -2 + 13.44444445

Reorder the terms:
13.44444445 + -7.333333333x + x2 = -2 + 13.44444445

Combine like terms: -2 + 13.44444445 = 11.44444445
13.44444445 + -7.333333333x + x2 = 11.44444445

Factor a perfect square on the left side:
(x + -3.666666667)(x + -3.666666667) = 11.44444445

Calculate the square root of the right side: 3.382963856

Break this problem into two subproblems by setting 
(x + -3.666666667) equal to 3.382963856 and -3.382963856.

Subproblem 1

x + -3.666666667 = 3.382963856 Simplifying x + -3.666666667 = 3.382963856 Reorder the terms: -3.666666667 + x = 3.382963856 Solving -3.666666667 + x = 3.382963856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.666666667' to each side of the equation. -3.666666667 + 3.666666667 + x = 3.382963856 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + x = 3.382963856 + 3.666666667 x = 3.382963856 + 3.666666667 Combine like terms: 3.382963856 + 3.666666667 = 7.049630523 x = 7.049630523 Simplifying x = 7.049630523

Subproblem 2

x + -3.666666667 = -3.382963856 Simplifying x + -3.666666667 = -3.382963856 Reorder the terms: -3.666666667 + x = -3.382963856 Solving -3.666666667 + x = -3.382963856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.666666667' to each side of the equation. -3.666666667 + 3.666666667 + x = -3.382963856 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + x = -3.382963856 + 3.666666667 x = -3.382963856 + 3.666666667 Combine like terms: -3.382963856 + 3.666666667 = 0.283702811 x = 0.283702811 Simplifying x = 0.283702811

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.049630523, 0.283702811}

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