m(m+5)=112

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Solution for m(m+5)=112 equation:


Simplifying
m(m + 5) = 112

Reorder the terms:
m(5 + m) = 112
(5 * m + m * m) = 112
(5m + m2) = 112

Solving
5m + m2 = 112

Solving for variable 'm'.

Reorder the terms:
-112 + 5m + m2 = 112 + -112

Combine like terms: 112 + -112 = 0
-112 + 5m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '112' to each side of the equation.
-112 + 5m + 112 + m2 = 0 + 112

Reorder the terms:
-112 + 112 + 5m + m2 = 0 + 112

Combine like terms: -112 + 112 = 0
0 + 5m + m2 = 0 + 112
5m + m2 = 0 + 112

Combine like terms: 0 + 112 = 112
5m + m2 = 112

The m term is 5m.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5m + 6.25 + m2 = 112 + 6.25

Reorder the terms:
6.25 + 5m + m2 = 112 + 6.25

Combine like terms: 112 + 6.25 = 118.25
6.25 + 5m + m2 = 118.25

Factor a perfect square on the left side:
(m + 2.5)(m + 2.5) = 118.25

Calculate the square root of the right side: 10.874281585

Break this problem into two subproblems by setting 
(m + 2.5) equal to 10.874281585 and -10.874281585.

Subproblem 1

m + 2.5 = 10.874281585 Simplifying m + 2.5 = 10.874281585 Reorder the terms: 2.5 + m = 10.874281585 Solving 2.5 + m = 10.874281585 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + m = 10.874281585 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + m = 10.874281585 + -2.5 m = 10.874281585 + -2.5 Combine like terms: 10.874281585 + -2.5 = 8.374281585 m = 8.374281585 Simplifying m = 8.374281585

Subproblem 2

m + 2.5 = -10.874281585 Simplifying m + 2.5 = -10.874281585 Reorder the terms: 2.5 + m = -10.874281585 Solving 2.5 + m = -10.874281585 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + m = -10.874281585 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + m = -10.874281585 + -2.5 m = -10.874281585 + -2.5 Combine like terms: -10.874281585 + -2.5 = -13.374281585 m = -13.374281585 Simplifying m = -13.374281585

Solution

The solution to the problem is based on the solutions from the subproblems. m = {8.374281585, -13.374281585}

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