3m^2+6m+2=0

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Solution for 3m^2+6m+2=0 equation:


Simplifying
3m2 + 6m + 2 = 0

Reorder the terms:
2 + 6m + 3m2 = 0

Solving
2 + 6m + 3m2 = 0

Solving for variable 'm'.

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

Divide each side by '3'.
0.6666666667 + 2m + m2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + 2m + -0.6666666667 + m2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + 2m + m2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + 2m + m2 = 0 + -0.6666666667
2m + m2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
2m + m2 = -0.6666666667

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

Add '1' to each side of the equation.
2m + 1 + m2 = -0.6666666667 + 1

Reorder the terms:
1 + 2m + m2 = -0.6666666667 + 1

Combine like terms: -0.6666666667 + 1 = 0.3333333333
1 + 2m + m2 = 0.3333333333

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

Calculate the square root of the right side: 0.577350269

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

Subproblem 1

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

Subproblem 2

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

Solution

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

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