2m^2+5=12m

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Solution for 2m^2+5=12m equation:


Simplifying
2m2 + 5 = 12m

Reorder the terms:
5 + 2m2 = 12m

Solving
5 + 2m2 = 12m

Solving for variable 'm'.

Reorder the terms:
5 + -12m + 2m2 = 12m + -12m

Combine like terms: 12m + -12m = 0
5 + -12m + 2m2 = 0

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

Divide each side by '2'.
2.5 + -6m + m2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -6m + -2.5 + m2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -6m + m2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -6m + m2 = 0 + -2.5
-6m + m2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-6m + m2 = -2.5

The m term is -6m.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6m + 9 + m2 = -2.5 + 9

Reorder the terms:
9 + -6m + m2 = -2.5 + 9

Combine like terms: -2.5 + 9 = 6.5
9 + -6m + m2 = 6.5

Factor a perfect square on the left side:
(m + -3)(m + -3) = 6.5

Calculate the square root of the right side: 2.549509757

Break this problem into two subproblems by setting 
(m + -3) equal to 2.549509757 and -2.549509757.

Subproblem 1

m + -3 = 2.549509757 Simplifying m + -3 = 2.549509757 Reorder the terms: -3 + m = 2.549509757 Solving -3 + m = 2.549509757 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + m = 2.549509757 + 3 Combine like terms: -3 + 3 = 0 0 + m = 2.549509757 + 3 m = 2.549509757 + 3 Combine like terms: 2.549509757 + 3 = 5.549509757 m = 5.549509757 Simplifying m = 5.549509757

Subproblem 2

m + -3 = -2.549509757 Simplifying m + -3 = -2.549509757 Reorder the terms: -3 + m = -2.549509757 Solving -3 + m = -2.549509757 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + m = -2.549509757 + 3 Combine like terms: -3 + 3 = 0 0 + m = -2.549509757 + 3 m = -2.549509757 + 3 Combine like terms: -2.549509757 + 3 = 0.450490243 m = 0.450490243 Simplifying m = 0.450490243

Solution

The solution to the problem is based on the solutions from the subproblems. m = {5.549509757, 0.450490243}

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