4m=(m+4)(2-m)

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Solution for 4m=(m+4)(2-m) equation:


Simplifying
4m = (m + 4)(2 + -1m)

Reorder the terms:
4m = (4 + m)(2 + -1m)

Multiply (4 + m) * (2 + -1m)
4m = (4(2 + -1m) + m(2 + -1m))
4m = ((2 * 4 + -1m * 4) + m(2 + -1m))
4m = ((8 + -4m) + m(2 + -1m))
4m = (8 + -4m + (2 * m + -1m * m))
4m = (8 + -4m + (2m + -1m2))

Combine like terms: -4m + 2m = -2m
4m = (8 + -2m + -1m2)

Solving
4m = 8 + -2m + -1m2

Solving for variable 'm'.

Reorder the terms:
-8 + 4m + 2m + m2 = 8 + -2m + -1m2 + -8 + 2m + m2

Combine like terms: 4m + 2m = 6m
-8 + 6m + m2 = 8 + -2m + -1m2 + -8 + 2m + m2

Reorder the terms:
-8 + 6m + m2 = 8 + -8 + -2m + 2m + -1m2 + m2

Combine like terms: 8 + -8 = 0
-8 + 6m + m2 = 0 + -2m + 2m + -1m2 + m2
-8 + 6m + m2 = -2m + 2m + -1m2 + m2

Combine like terms: -2m + 2m = 0
-8 + 6m + m2 = 0 + -1m2 + m2
-8 + 6m + m2 = -1m2 + m2

Combine like terms: -1m2 + m2 = 0
-8 + 6m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + 6m + 8 + m2 = 0 + 8

Reorder the terms:
-8 + 8 + 6m + m2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 6m + m2 = 0 + 8
6m + m2 = 0 + 8

Combine like terms: 0 + 8 = 8
6m + m2 = 8

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 = 8 + 9

Reorder the terms:
9 + 6m + m2 = 8 + 9

Combine like terms: 8 + 9 = 17
9 + 6m + m2 = 17

Factor a perfect square on the left side:
(m + 3)(m + 3) = 17

Calculate the square root of the right side: 4.123105626

Break this problem into two subproblems by setting 
(m + 3) equal to 4.123105626 and -4.123105626.

Subproblem 1

m + 3 = 4.123105626 Simplifying m + 3 = 4.123105626 Reorder the terms: 3 + m = 4.123105626 Solving 3 + m = 4.123105626 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 = 4.123105626 + -3 Combine like terms: 3 + -3 = 0 0 + m = 4.123105626 + -3 m = 4.123105626 + -3 Combine like terms: 4.123105626 + -3 = 1.123105626 m = 1.123105626 Simplifying m = 1.123105626

Subproblem 2

m + 3 = -4.123105626 Simplifying m + 3 = -4.123105626 Reorder the terms: 3 + m = -4.123105626 Solving 3 + m = -4.123105626 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 = -4.123105626 + -3 Combine like terms: 3 + -3 = 0 0 + m = -4.123105626 + -3 m = -4.123105626 + -3 Combine like terms: -4.123105626 + -3 = -7.123105626 m = -7.123105626 Simplifying m = -7.123105626

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.123105626, -7.123105626}

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