x^2 - 1/9x all over x^2 + 2x + 1/ 3x^2

- anonymous

x^2 - 1/9x all over x^2 + 2x + 1/ 3x^2

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- anonymous

|dw:1346439066411:dw|

- anonymous

start by factoring

- anonymous

I"m running out of time and stressing out!

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## More answers

- ParthKohli

Then you should use WolframAlpha.
http://wolframalpha.com

- anonymous

can't just give you the answer sorry you have to at least try

- anonymous

I'd actually recommend using\[\frac{\frac{a}{b}}{\frac{c}{d}} = \frac{ad}{bc}\] first, and then factoring.

- anonymous

I forgot that step thanks now I know an easier why

- anonymous

But it doesn't really matter, commutative property and whatnot..

- radar

|dw:1346439505981:dw|

- radar

Start factoring and canceling.

- radar

If you will do the numerator, I will do the denominator.

- anonymous

I got a numerator of higher degree than denominator, so I converted it to a mixed number. I don't think that's necessary though; usually with rational expressions, leaving everything in factored form as improper fractions is more convenient.

- radar

@lindseyharrison , the ball is in your court.

- anonymous

5x^4/4y^3

- radar

|dw:1346439990509:dw|

- radar

|dw:1346440061907:dw|

- radar

|dw:1346440122163:dw| What do you have left?

- radar

|dw:1346440255206:dw|

- anonymous

a) 4y^3/5x^4
b) 4y^4/5x^3
c) 5x^4/4y^3
d) 5x^3/4y^4

- anonymous

those are my options

- radar

You are looking at the wrong answers. There is not a y in you problem. Please look at the problem you have entered in the problem box!

- anonymous

well that explains a lot lol

- anonymous

x(x+1/3(x-1)
3x(x+1)/(x-1)
x(x-1)/x(x+1)
(x-1)/3x(x+1)

- anonymous

So it's C!

- radar

I don't agree with C, but then again I don't agree with a lot of things. You will notice that C can be further simplified by a division of x to both numerator and denominator.

- radar

Are you sure that you copied D. correctly?

- anonymous

Yeah, there's a typo in there.

- radar

I think you are right @CliffSedge

- radar

I really don't see a correct answer lol.

- radar

Or on the other hand there may be an error in the solution???

- radar

If D were: x(x-1)/3(x+1)
It would be more acceptable.

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