SOLUTION: Simplify the expression: x3- 8xy2+3y3/x+3y (it reads as x-cubed +8xy (squared) + 3y (cubed)) at the top of the equation. I have tried long division and factoring, and none of t

Algebra ->  Equations -> SOLUTION: Simplify the expression: x3- 8xy2+3y3/x+3y (it reads as x-cubed +8xy (squared) + 3y (cubed)) at the top of the equation. I have tried long division and factoring, and none of t      Log On


   

Question 139769: Simplify the expression:
x3- 8xy2+3y3/x+3y (it reads as x-cubed +8xy (squared) + 3y (cubed)) at the top of the equation.
I have tried long division and factoring, and none of those methods have worked. I have also tried to take out any common variables and to cancel, and that hasn't work either.
Thanks for your help.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
Actually, polynomial long division works just fine. I suspect that when you tried it, you made a very common error. You must put in place holders for missing terms before you start the long division process. Your numerator needs to be changed to look like this:

x%5E3%2B0x%5E2y-8xy%5E2%2B3y%5E3. Try your long division again using this expression as your dividend and see if that doesn't work out for you. Write back if you are still having problems.