SOLUTION: Hi! I'm needing some help checking to see if I factored the polynomial correctly, if possible. 27x^9-y^3 thanks!

Algebra ->  Equations -> SOLUTION: Hi! I'm needing some help checking to see if I factored the polynomial correctly, if possible. 27x^9-y^3 thanks!       Log On


   

Question 184899: Hi!
I'm needing some help checking to see if I factored the polynomial correctly, if possible.
27x^9-y^3
thanks!

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
27x%5E3-y%5E3 Do you recognise this as the difference of two cubes?
%283x%29%5E3-%28y%29%5E3 Factor the difference of cubes:
highlight%28%283x-y%29%289x%5E2%2B3xy%2By%5E2%29%29