m^2-14m-98=0

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Solution for m^2-14m-98=0 equation:


Simplifying
m2 + -14m + -98 = 0

Reorder the terms:
-98 + -14m + m2 = 0

Solving
-98 + -14m + m2 = 0

Solving for variable 'm'.

Begin completing the square.

Move the constant term to the right:

Add '98' to each side of the equation.
-98 + -14m + 98 + m2 = 0 + 98

Reorder the terms:
-98 + 98 + -14m + m2 = 0 + 98

Combine like terms: -98 + 98 = 0
0 + -14m + m2 = 0 + 98
-14m + m2 = 0 + 98

Combine like terms: 0 + 98 = 98
-14m + m2 = 98

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 = 98 + 49

Reorder the terms:
49 + -14m + m2 = 98 + 49

Combine like terms: 98 + 49 = 147
49 + -14m + m2 = 147

Factor a perfect square on the left side:
(m + -7)(m + -7) = 147

Calculate the square root of the right side: 12.124355653

Break this problem into two subproblems by setting 
(m + -7) equal to 12.124355653 and -12.124355653.

Subproblem 1

m + -7 = 12.124355653 Simplifying m + -7 = 12.124355653 Reorder the terms: -7 + m = 12.124355653 Solving -7 + m = 12.124355653 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 = 12.124355653 + 7 Combine like terms: -7 + 7 = 0 0 + m = 12.124355653 + 7 m = 12.124355653 + 7 Combine like terms: 12.124355653 + 7 = 19.124355653 m = 19.124355653 Simplifying m = 19.124355653

Subproblem 2

m + -7 = -12.124355653 Simplifying m + -7 = -12.124355653 Reorder the terms: -7 + m = -12.124355653 Solving -7 + m = -12.124355653 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 = -12.124355653 + 7 Combine like terms: -7 + 7 = 0 0 + m = -12.124355653 + 7 m = -12.124355653 + 7 Combine like terms: -12.124355653 + 7 = -5.124355653 m = -5.124355653 Simplifying m = -5.124355653

Solution

The solution to the problem is based on the solutions from the subproblems. m = {19.124355653, -5.124355653}

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