Help on easy math problem

[Nukedsodapop 5,000+ posts]

I haven't done this in a long time, here's the problem

Simplify the expression

(the one's in()'s are fractions, and they're being divided by other fractions)

(x/y^2) - (y/x^2)

----------------------

(1/y^2) - (1/x^2)

//Edit, so I think I got it but I need to check my answer

is it

(x-y)(x^2+xy+y^2)

-------------------------

(x+y)(x-y)

That simplifies to

(x^2+xy+y^2)

-------------------------

(x+y)

???

Click to read more...

 

[jdawg90 10+ year member]

x^3 - y^3

-----------------

x^2- y^2

idk that might be wrong... just did it in my head

 

[konechiwa 10+ year member]

isn't it:

x-y

------- which is x-y

1

because

(x/y^2) - (y/x^2)

----------------------

(1/y^2) - (1/x^2)

the X^2 and Y^2 cancel each other out? I haven't done that for a long time so I'm not very sure if that is right.

 

[AdrianD 10+ year member]

x^3 - y^3-----------------

x^2- y^2

idk that might be wrong... just did it in my head

Absolutely correct.

 

[btdickey99 5,000+ posts]

x^3 - y^3-----------------

x^2- y^2

idk that might be wrong... just did it in my head

same thing i got...

ofcourse I did it in my head too

 

[kylewangintts 10+ year member]

x-y

 

[ThatChevyGuy 5,000+ posts]

I disagree, the correct answer is eleventy billion deebeeeez

 

[tappin_azz 10+ year member]

x^3-Y^3

-----------

x^2-y^2

= x-y

 

[Nukedsodapop 5,000+ posts]

x^3 - y^3-----------------

x^2- y^2

idk that might be wrong... just did it in my head

Ya that's it, but she wants us to go further i guess

 

[AdrianD 10+ year member]

I disagree, the correct answer is eleventy billion deebeeeez

I disagree

 

[Nukedsodapop 5,000+ posts]

alright here's another one i don't know, i'm on 75, almost done

Express as a quotient

x^(-1/2) - x^(3/2)

 

[AdrianD 10+ year member]

(1-x)(1+x)

-------------

x^(-1/2)

 

[ThatChevyGuy 5,000+ posts]

**** this stuff, i did it last semester, no more for me.

 

[jdawg90 10+ year member]

x^3-Y^3-----------

x^2-y^2

= x-y

no