3m^2-12m=4

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Solution for 3m^2-12m=4 equation:


Simplifying
3m2 + -12m = 4

Reorder the terms:
-12m + 3m2 = 4

Solving
-12m + 3m2 = 4

Solving for variable 'm'.

Reorder the terms:
-4 + -12m + 3m2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -12m + 3m2 = 0

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

Divide each side by '3'.
-1.333333333 + -4m + m2 = 0

Move the constant term to the right:

Add '1.333333333' to each side of the equation.
-1.333333333 + -4m + 1.333333333 + m2 = 0 + 1.333333333

Reorder the terms:
-1.333333333 + 1.333333333 + -4m + m2 = 0 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + -4m + m2 = 0 + 1.333333333
-4m + m2 = 0 + 1.333333333

Combine like terms: 0 + 1.333333333 = 1.333333333
-4m + m2 = 1.333333333

The m term is -4m.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4m + 4 + m2 = 1.333333333 + 4

Reorder the terms:
4 + -4m + m2 = 1.333333333 + 4

Combine like terms: 1.333333333 + 4 = 5.333333333
4 + -4m + m2 = 5.333333333

Factor a perfect square on the left side:
(m + -2)(m + -2) = 5.333333333

Calculate the square root of the right side: 2.309401077

Break this problem into two subproblems by setting 
(m + -2) equal to 2.309401077 and -2.309401077.

Subproblem 1

m + -2 = 2.309401077 Simplifying m + -2 = 2.309401077 Reorder the terms: -2 + m = 2.309401077 Solving -2 + m = 2.309401077 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + m = 2.309401077 + 2 Combine like terms: -2 + 2 = 0 0 + m = 2.309401077 + 2 m = 2.309401077 + 2 Combine like terms: 2.309401077 + 2 = 4.309401077 m = 4.309401077 Simplifying m = 4.309401077

Subproblem 2

m + -2 = -2.309401077 Simplifying m + -2 = -2.309401077 Reorder the terms: -2 + m = -2.309401077 Solving -2 + m = -2.309401077 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + m = -2.309401077 + 2 Combine like terms: -2 + 2 = 0 0 + m = -2.309401077 + 2 m = -2.309401077 + 2 Combine like terms: -2.309401077 + 2 = -0.309401077 m = -0.309401077 Simplifying m = -0.309401077

Solution

The solution to the problem is based on the solutions from the subproblems. m = {4.309401077, -0.309401077}

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