m^2-4m-4.25=-2

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Solution for m^2-4m-4.25=-2 equation: 


Simplifying
m2 + -4m + -4.25 = -2

Reorder the terms:
-4.25 + -4m + m2 = -2

Solving
-4.25 + -4m + m2 = -2

Solving for variable 'm'.

Reorder the terms:
-4.25 + 2 + -4m + m2 = -2 + 2

Combine like terms: -4.25 + 2 = -2.25
-2.25 + -4m + m2 = -2 + 2

Combine like terms: -2 + 2 = 0
-2.25 + -4m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2.25' to each side of the equation.
-2.25 + -4m + 2.25 + m2 = 0 + 2.25

Reorder the terms:
-2.25 + 2.25 + -4m + m2 = 0 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + -4m + m2 = 0 + 2.25
-4m + m2 = 0 + 2.25

Combine like terms: 0 + 2.25 = 2.25
-4m + m2 = 2.25

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 = 2.25 + 4

Reorder the terms:
4 + -4m + m2 = 2.25 + 4

Combine like terms: 2.25 + 4 = 6.25
4 + -4m + m2 = 6.25

Factor a perfect square on the left side:
(m + -2)(m + -2) = 6.25

Calculate the square root of the right side: 2.5

Break this problem into two subproblems by setting 
(m + -2) equal to 2.5 and -2.5.


Subproblem 1
m + -2 = 2.5

Simplifying
m + -2 = 2.5

Reorder the terms:
-2 + m = 2.5

Solving
-2 + m = 2.5

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 = 2.5 + 2

Combine like terms: -2 + 2 = 0
0 + m = 2.5 + 2
m = 2.5 + 2

Combine like terms: 2.5 + 2 = 4.5
m = 4.5

Simplifying
m = 4.5


Subproblem 2
m + -2 = -2.5

Simplifying
m + -2 = -2.5

Reorder the terms:
-2 + m = -2.5

Solving
-2 + m = -2.5

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 = -2.5 + 2

Combine like terms: -2 + 2 = 0
0 + m = -2.5 + 2
m = -2.5 + 2

Combine like terms: -2.5 + 2 = -0.5
m = -0.5

Simplifying
m = -0.5


Solution
The solution to the problem is based on the solutions
from the subproblems.
m = {4.5, -0.5}

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