Question

Help please find the LCM of
u^(2)-1 and u^(2)+6u+5

Answer 1

factor both of these

Answer 2

(u-1)(u+1) is the first one factored
(u+1)(u+5) is the 2nd one factored

Answer 3

what is the only thing that you see in common?

Answer 4

This might help you to understand how to determine the LCM (the method applies to numbers as well as expressions):

http://www.helpwithfractions.com/least-common-multiple.html

Answer 5

u+1 is the answer btw

Answer 6

it says u+1 is incorrect

Answer 7

figured it out the answer is (u-1)(u+1)(u+5)

Answer 8

Yes! That's correct!