SOLUTION: can you please find the LCM of this equatiion (9+2r), (81-4r^2) and (9-2r)

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Question 418169: can you please find the LCM of this equatiion
(9+2r), (81-4r^2) and (9-2r)
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

(9+2r),
(81 -4r^2) = ( 9+2r ) (9-2r)
(9 -2r)


LCM of these is : ( 81 -4r^2)