I'm having difficulty finding the LCM of (3+7y), (9-49y^2), and (3-7y). Can someone please help. I know I have to factor the above to come up with the LCM. Here is what I have so far, then I become lost.
(3+7y)= 1 * 3 * 1 * 7 * y = 1 * 1 * 3 * 3 * 7 * y
(9-49y^2) = 3 * 3 * 7 * 7 * y * y
(3-7y) = 1 * 3 * 1 * 7 * y = 1 * 1 * 3 * 7 * y
When I combine the three factors above I then have: 1 * 1 * 3 * 3 * 7 * 7 * y * y. Where do I go from from here or am I way off track here?