m^2-28m=-5

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Solution for m^2-28m=-5 equation:


Simplifying
m2 + -28m = -5

Reorder the terms:
-28m + m2 = -5

Solving
-28m + m2 = -5

Solving for variable 'm'.

Reorder the terms:
5 + -28m + m2 = -5 + 5

Combine like terms: -5 + 5 = 0
5 + -28m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -28m + -5 + m2 = 0 + -5

Reorder the terms:
5 + -5 + -28m + m2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -28m + m2 = 0 + -5
-28m + m2 = 0 + -5

Combine like terms: 0 + -5 = -5
-28m + m2 = -5

The m term is -28m.  Take half its coefficient (-14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
-28m + 196 + m2 = -5 + 196

Reorder the terms:
196 + -28m + m2 = -5 + 196

Combine like terms: -5 + 196 = 191
196 + -28m + m2 = 191

Factor a perfect square on the left side:
(m + -14)(m + -14) = 191

Calculate the square root of the right side: 13.820274961

Break this problem into two subproblems by setting 
(m + -14) equal to 13.820274961 and -13.820274961.

Subproblem 1

m + -14 = 13.820274961 Simplifying m + -14 = 13.820274961 Reorder the terms: -14 + m = 13.820274961 Solving -14 + m = 13.820274961 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + m = 13.820274961 + 14 Combine like terms: -14 + 14 = 0 0 + m = 13.820274961 + 14 m = 13.820274961 + 14 Combine like terms: 13.820274961 + 14 = 27.820274961 m = 27.820274961 Simplifying m = 27.820274961

Subproblem 2

m + -14 = -13.820274961 Simplifying m + -14 = -13.820274961 Reorder the terms: -14 + m = -13.820274961 Solving -14 + m = -13.820274961 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + m = -13.820274961 + 14 Combine like terms: -14 + 14 = 0 0 + m = -13.820274961 + 14 m = -13.820274961 + 14 Combine like terms: -13.820274961 + 14 = 0.179725039 m = 0.179725039 Simplifying m = 0.179725039

Solution

The solution to the problem is based on the solutions from the subproblems. m = {27.820274961, 0.179725039}

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