Sorry, one problem per post. Hint for the second one: Use the Rational Roots Theorem to determine the possible rational roots of
Then test each possible rational root using synthetic division. Go to Purple Math and look up synthetic division if you don't know how to do it. One of the possible roots will come out even giving you one factor and the synthetic division quotient will give you the other.
John
My calculator said it, I believe it, that settles it