college agebra
posted by jessica .
(3xsquared2x1)(xsquared+x+5)

(3x^2  2x  1)(x^2 + x + 5)
= 3x^4 + 3x^3 + 15x^2 + 2x^3  2x^2 ..... etc
(you should have 9 terms in this line)
can you see what I am doing?
it is just an expanded version of the old FOIL concept
I am sure you can finish it
There will be all kinds of like terms, make sure to simplify.
compare your answer with
http://www.wolframalpha.com/input/?i=expand+%283x%5E2++2x++1%29%28x%5E2+%2B+x+%2B+5%29