Quantitative Aptitude :: Simplification - Discussion

Show Explanation

Please attempt the question to view the Explanation !!!

Explanation:
m^2+m^-2=23
=> (m + m^-1)^2 - 2 = 23
=> (m + m^-1) = 5

m^3+m^-3 = (m + m^-1)^3 - 3(m + m^-1) = 5^3 - 3*5 = 110