Question: Eigenvalues of Matrix

Hello guys , i have a matrix that i want to find its eigenvalues , i have its answer but maple calculations didnt give its anwer.

answer:3(1+q),{-3m+sqrt(m*(256m^3+160m^2-31m-16)}/4m(m+1),{-3m-sqrt(m*(256m^3+160m^2-31m-16)}/43(m+1)

m and q can bu any number

maple calculation :

eigen.mw

 

 

 

thank you guys

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