Factoring problem?

Question

How do u factor x^4-x^2-18x-18 = 0 also, how do u do x^4 + 3x^3-3x^2-11x-6=0. can you show me the steps how to do it PLEASE??

Answer 1

For complete directions, go to http://www.wtamu.edu/academic/anns/mps/m... and scroll down to Factoring a Polynomial with Four Terms by Grouping.