6m(m+4)=m-5

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Solution for 6m(m+4)=m-5 equation:


Simplifying
6m(m + 4) = m + -5

Reorder the terms:
6m(4 + m) = m + -5
(4 * 6m + m * 6m) = m + -5
(24m + 6m2) = m + -5

Reorder the terms:
24m + 6m2 = -5 + m

Solving
24m + 6m2 = -5 + m

Solving for variable 'm'.

Reorder the terms:
5 + 24m + -1m + 6m2 = -5 + m + 5 + -1m

Combine like terms: 24m + -1m = 23m
5 + 23m + 6m2 = -5 + m + 5 + -1m

Reorder the terms:
5 + 23m + 6m2 = -5 + 5 + m + -1m

Combine like terms: -5 + 5 = 0
5 + 23m + 6m2 = 0 + m + -1m
5 + 23m + 6m2 = m + -1m

Combine like terms: m + -1m = 0
5 + 23m + 6m2 = 0

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

Divide each side by '6'.
0.8333333333 + 3.833333333m + m2 = 0

Move the constant term to the right:

Add '-0.8333333333' to each side of the equation.
0.8333333333 + 3.833333333m + -0.8333333333 + m2 = 0 + -0.8333333333

Reorder the terms:
0.8333333333 + -0.8333333333 + 3.833333333m + m2 = 0 + -0.8333333333

Combine like terms: 0.8333333333 + -0.8333333333 = 0.0000000000
0.0000000000 + 3.833333333m + m2 = 0 + -0.8333333333
3.833333333m + m2 = 0 + -0.8333333333

Combine like terms: 0 + -0.8333333333 = -0.8333333333
3.833333333m + m2 = -0.8333333333

The m term is 3.833333333m.  Take half its coefficient (1.916666667).
Square it (3.673611112) and add it to both sides.

Add '3.673611112' to each side of the equation.
3.833333333m + 3.673611112 + m2 = -0.8333333333 + 3.673611112

Reorder the terms:
3.673611112 + 3.833333333m + m2 = -0.8333333333 + 3.673611112

Combine like terms: -0.8333333333 + 3.673611112 = 2.8402777787
3.673611112 + 3.833333333m + m2 = 2.8402777787

Factor a perfect square on the left side:
(m + 1.916666667)(m + 1.916666667) = 2.8402777787

Calculate the square root of the right side: 1.685312368

Break this problem into two subproblems by setting 
(m + 1.916666667) equal to 1.685312368 and -1.685312368.

Subproblem 1

m + 1.916666667 = 1.685312368 Simplifying m + 1.916666667 = 1.685312368 Reorder the terms: 1.916666667 + m = 1.685312368 Solving 1.916666667 + m = 1.685312368 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.916666667' to each side of the equation. 1.916666667 + -1.916666667 + m = 1.685312368 + -1.916666667 Combine like terms: 1.916666667 + -1.916666667 = 0.000000000 0.000000000 + m = 1.685312368 + -1.916666667 m = 1.685312368 + -1.916666667 Combine like terms: 1.685312368 + -1.916666667 = -0.231354299 m = -0.231354299 Simplifying m = -0.231354299

Subproblem 2

m + 1.916666667 = -1.685312368 Simplifying m + 1.916666667 = -1.685312368 Reorder the terms: 1.916666667 + m = -1.685312368 Solving 1.916666667 + m = -1.685312368 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.916666667' to each side of the equation. 1.916666667 + -1.916666667 + m = -1.685312368 + -1.916666667 Combine like terms: 1.916666667 + -1.916666667 = 0.000000000 0.000000000 + m = -1.685312368 + -1.916666667 m = -1.685312368 + -1.916666667 Combine like terms: -1.685312368 + -1.916666667 = -3.601979035 m = -3.601979035 Simplifying m = -3.601979035

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.231354299, -3.601979035}

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