2m^2-28m+49=0

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Solution for 2m^2-28m+49=0 equation:


Simplifying
2m2 + -28m + 49 = 0

Reorder the terms:
49 + -28m + 2m2 = 0

Solving
49 + -28m + 2m2 = 0

Solving for variable 'm'.

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

Divide each side by '2'.
24.5 + -14m + m2 = 0

Move the constant term to the right:

Add '-24.5' to each side of the equation.
24.5 + -14m + -24.5 + m2 = 0 + -24.5

Reorder the terms:
24.5 + -24.5 + -14m + m2 = 0 + -24.5

Combine like terms: 24.5 + -24.5 = 0.0
0.0 + -14m + m2 = 0 + -24.5
-14m + m2 = 0 + -24.5

Combine like terms: 0 + -24.5 = -24.5
-14m + m2 = -24.5

The m term is -14m.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14m + 49 + m2 = -24.5 + 49

Reorder the terms:
49 + -14m + m2 = -24.5 + 49

Combine like terms: -24.5 + 49 = 24.5
49 + -14m + m2 = 24.5

Factor a perfect square on the left side:
(m + -7)(m + -7) = 24.5

Calculate the square root of the right side: 4.949747468

Break this problem into two subproblems by setting 
(m + -7) equal to 4.949747468 and -4.949747468.

Subproblem 1

m + -7 = 4.949747468 Simplifying m + -7 = 4.949747468 Reorder the terms: -7 + m = 4.949747468 Solving -7 + m = 4.949747468 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + m = 4.949747468 + 7 Combine like terms: -7 + 7 = 0 0 + m = 4.949747468 + 7 m = 4.949747468 + 7 Combine like terms: 4.949747468 + 7 = 11.949747468 m = 11.949747468 Simplifying m = 11.949747468

Subproblem 2

m + -7 = -4.949747468 Simplifying m + -7 = -4.949747468 Reorder the terms: -7 + m = -4.949747468 Solving -7 + m = -4.949747468 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + m = -4.949747468 + 7 Combine like terms: -7 + 7 = 0 0 + m = -4.949747468 + 7 m = -4.949747468 + 7 Combine like terms: -4.949747468 + 7 = 2.050252532 m = 2.050252532 Simplifying m = 2.050252532

Solution

The solution to the problem is based on the solutions from the subproblems. m = {11.949747468, 2.050252532}

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