3q^2-6q+2=0

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


Simplifying
3q2 + -6q + 2 = 0

Reorder the terms:
2 + -6q + 3q2 = 0

Solving
2 + -6q + 3q2 = 0

Solving for variable 'q'.

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

Divide each side by '3'.
0.6666666667 + -2q + q2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + -2q + -0.6666666667 + q2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + -2q + q2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + -2q + q2 = 0 + -0.6666666667
-2q + q2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
-2q + q2 = -0.6666666667

The q term is -2q.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2q + 1 + q2 = -0.6666666667 + 1

Reorder the terms:
1 + -2q + q2 = -0.6666666667 + 1

Combine like terms: -0.6666666667 + 1 = 0.3333333333
1 + -2q + q2 = 0.3333333333

Factor a perfect square on the left side:
(q + -1)(q + -1) = 0.3333333333

Calculate the square root of the right side: 0.577350269

Break this problem into two subproblems by setting 
(q + -1) equal to 0.577350269 and -0.577350269.

Subproblem 1

q + -1 = 0.577350269 Simplifying q + -1 = 0.577350269 Reorder the terms: -1 + q = 0.577350269 Solving -1 + q = 0.577350269 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + q = 0.577350269 + 1 Combine like terms: -1 + 1 = 0 0 + q = 0.577350269 + 1 q = 0.577350269 + 1 Combine like terms: 0.577350269 + 1 = 1.577350269 q = 1.577350269 Simplifying q = 1.577350269

Subproblem 2

q + -1 = -0.577350269 Simplifying q + -1 = -0.577350269 Reorder the terms: -1 + q = -0.577350269 Solving -1 + q = -0.577350269 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + q = -0.577350269 + 1 Combine like terms: -1 + 1 = 0 0 + q = -0.577350269 + 1 q = -0.577350269 + 1 Combine like terms: -0.577350269 + 1 = 0.422649731 q = 0.422649731 Simplifying q = 0.422649731

Solution

The solution to the problem is based on the solutions from the subproblems. q = {1.577350269, 0.422649731}

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