## anonymous 5 years ago When simplifying radical expressions how would you find the GCF of 5xy^3 over 6xy? I cant seem to remember :P

1. anonymous

I am doing my lesson and they say the GCF would be 6xy and i disagree. Is that correct? It is one of the steps to solving a problem :P

2. anonymous

O_O

3. anonymous

i think it would be xy - although i have no clue how to calculate a gcd xD... i'm going to look it up - hold on :P

4. anonymous

okie dokie! :)

5. anonymous

o.O ok - it's not as easy, as i thought. But one simple way would just be to find the factors of both expressions and select the common ones... so imho $\gcd(5xy^3, 6xy) = xy$ cause 5 and 6 don't have any common prime-factors... and well xy is obviously the highest degree, cause of the second polynom...

6. anonymous

Alright then thanks babe :D lol idk why it said the GCF would be 6xy then :P thats weird prolly technical mistake or whatever on the website :) xD so very helpful :)

7. anonymous

6xy is definitely wrong - would leave you with ${5 \over 6} y^2$ for the first term and wikipedia says, it has to divide evenly (remainder = 0). But I guess, you already know ;) anyhow - you're very welcome! :)

8. anonymous

:)

9. anonymous

Yep i just talked to a teacher through instant chat or whatever lol and he said that they must've made a mistake :) Thanks :D

10. anonymous

Oh and do u think you could help me real quick with step on a problem im doing in another lesson real quick? :)

11. anonymous

sure..

12. anonymous

Holy pellet lol nevermind!! >.< sorry i just got what i did wrong ughhh ok im sorry and i thought u were going to bed? :D lol

13. anonymous

i am - but it's just 3 hours, so... isn't really worth the trouble ;)

14. anonymous

xD Are you gonna be ok tomorrow? I mean like you can run on empty? :o lol

15. anonymous

i'm an insomniac so i'm used to it ;) But I think I'll at least rest my eyes a little, so - cya tomorrow! :*

16. anonymous

Mkay!! :)