SOLUTION: i need to factor 8x^9 + 729y^3 and I seem to mess it up everytime I try to do this. Could you give me steps in which to take to solve this probem?

Question 259515: i need to factor 8x^9 + 729y^3 and I seem to mess it up everytime I try to do this. Could you give me steps in which to take to solve this probem?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Factor:
First, do you recognise this as the sum of two cubes?

Recall that the sum of two cubes is factorable as:
and, here: and , so...