m^2-m-68=0

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Solution for m^2-m-68=0 equation:


Simplifying
m2 + -1m + -68 = 0

Reorder the terms:
-68 + -1m + m2 = 0

Solving
-68 + -1m + m2 = 0

Solving for variable 'm'.

Begin completing the square.

Move the constant term to the right:

Add '68' to each side of the equation.
-68 + -1m + 68 + m2 = 0 + 68

Reorder the terms:
-68 + 68 + -1m + m2 = 0 + 68

Combine like terms: -68 + 68 = 0
0 + -1m + m2 = 0 + 68
-1m + m2 = 0 + 68

Combine like terms: 0 + 68 = 68
-1m + m2 = 68

The m term is -1m.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1m + 0.25 + m2 = 68 + 0.25

Reorder the terms:
0.25 + -1m + m2 = 68 + 0.25

Combine like terms: 68 + 0.25 = 68.25
0.25 + -1m + m2 = 68.25

Factor a perfect square on the left side:
(m + -0.5)(m + -0.5) = 68.25

Calculate the square root of the right side: 8.261355821

Break this problem into two subproblems by setting 
(m + -0.5) equal to 8.261355821 and -8.261355821.

Subproblem 1

m + -0.5 = 8.261355821 Simplifying m + -0.5 = 8.261355821 Reorder the terms: -0.5 + m = 8.261355821 Solving -0.5 + m = 8.261355821 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + m = 8.261355821 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + m = 8.261355821 + 0.5 m = 8.261355821 + 0.5 Combine like terms: 8.261355821 + 0.5 = 8.761355821 m = 8.761355821 Simplifying m = 8.761355821

Subproblem 2

m + -0.5 = -8.261355821 Simplifying m + -0.5 = -8.261355821 Reorder the terms: -0.5 + m = -8.261355821 Solving -0.5 + m = -8.261355821 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + m = -8.261355821 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + m = -8.261355821 + 0.5 m = -8.261355821 + 0.5 Combine like terms: -8.261355821 + 0.5 = -7.761355821 m = -7.761355821 Simplifying m = -7.761355821

Solution

The solution to the problem is based on the solutions from the subproblems. m = {8.761355821, -7.761355821}

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