## LucidiousXIV one year ago I need help with Polynomials !!MEDAL!! (2x+3y)(2x+3y)(2x+3y) Someone help me solve it?

1. anonymous

you mean "multiply"?

2. LucidiousXIV

3. LucidiousXIV

@satellite73

4. zepdrix

Have you learned about Binomial Theorem? :) If not, that's ok, expanding out three sets of brackets shouldn't be too bad.

5. LucidiousXIV

6. zepdrix

|dw:1443316909081:dw|We'll take the 2x from the first set of brackets and distribute it to each term in the second set of brackets. We do the same with the 3y from the first set of brackets. This method is often referred to as FOIL ( I can't remember what that stands for lol )

7. zepdrix

So we'll end up with 4 terms in total. The first of which (starting from the bottom) is $$\large\rm 6xy$$ ya? :) Can you get the other terms?

8. LucidiousXIV

This is the answer I got with mathway, but I need the steps in order to get my last question completely done

9. zepdrix

Yes, and I'm asking you for one of the steps :p

10. LucidiousXIV

Nevermind I got it, I forgot to square the 9 in the beginning

11. DanJS

@zepdrix do you draw in the DRAW area with a i-pad or one of those pen tablets or something?... looks neat. Always wondered if those tablets worked here.

12. zepdrix

Ya I have a Wacom Bamboo Tablet thingy :) It's a lot more difficult to use that I anticipated, I probably wouldn't recommend buying one, unless you're getting it for like drawing art stuff, or for playing Osu XD

13. DanJS

ah ,k .. looks much better than using a shaky hand mouse