Posted by C on .
Find the LCM for
u^3 + 6u^2 + 9u, u^2  6u
I came up with
u(u+3)(u6) is this correct?

algebra 
drwls,
The factors of the first term are
u(u^2 + 6u + 9) = u(u+3)^2
and of the second term are
u(u6)
The LCM is u*(u+3)^2*(u6)
u+3 must appear twice.