Telemachus is concerned that there are too many suitors for him and odysseus to conquer alone. how does odysseus convince him that they can win?

First the old oysseus that athena changed to look like a begger took the challende that penelope gave them which was to string odysseus's bow and shoot a arrow through a bunch of little hoops, then they locked the doors so the men couldn't get out and told the women not to let them out. then they killed all of them. then once all were killed penelope came in and didn't belive it was odysseus so he had to convince her but he did and the heroic journey was finished with odysseus home 

sources:we just read it in sophamore english and wrote like three papers on it etc. they have some good stuff on this on spark notes which i used before i read because i skipped once, but i did read it.