2013-II-31

16-06-2021 app.cch No Comments

Ans: B

\begin{array}{rcl} a^{2} + 4 a + 4 & = & (a + 2)^{2} \\ a^{2} - 4 & = & (a + 2) (a - 2) \\ a^{3} + 8 & = & (a + 2) (a^{2} - 2 a + 4) \\ ∴ L.C.M. & = & (a - 2) (a + 2)^{2} (a^{2} - 2 a + 4) \end{array}