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I think I might've solved it! :-) 28zx/2z+14x
But do you have the result somewhere to double check for me?
The way I did it is: 28zx/(z-7x)(z+7x) + z-7x/z+7x Explanation: (z-7x) with z-7x are reduced...you just cross them out and then you just add them together 28zx remains alone on the top si on the bottom we have z+7x + z+7x which equals 2z+14x so that's why I came up with the answer as being 28zx/2z+14x. It would've been good to know if you had the response somewhere at the end of the book so we can double check the answer.
Nope, that's no the right answer. It can be done though..., that's all I know for now.
i dont its a question on my practice test
I'm still working on it! :)
28zx+1 -------- z+7x
It's 28zx+z^2+49x^2 :D
This is definitely the answer! :P I knew it can be done!
But it must be simplified some more though. :P
Just a second... :D
mowrey almost had it right to begin with. When you cancel don't forget the 1that is there when you cancel
Final result! z^2+14xz+49x^2
I get an answer of (z+7x)/(z-7x). Here is how I arrived at the answer: 28zx/(z^2-49x^2) + (z-7x)/(z+7x) Factor the bottom left term to get: 28zx/(z-7x)(z+7x) + (z-7x)/(z+7x) Now find a common denominator to get: [(28zx + (z-7x)(z-7x)]/(z-7x)(z+7x) (28zx+z^2-14zx+49x^2)/(z-7x)(z+7x) (z^2+14zx+49x^2)/(z-7x)(z+7x) Factor the top term to get: (z+7x)(z+7x)/(z-7x)(z+7x) = (z+7x)/(z-7x)
Nah, it's still going! I have this (z^2+14xz+49x^2) / (z^2-49x^2)...
mowrey the same my answer
wait almost ,
Yes, and it goes down to your answer! :) (z+7x)/(z-7x)
Very good radar! You're the man!
I mean gw2011...sorry! :D
Man, what an exercise...! :D I've been struggling with it since she posted it the first time...several hours ago!
28zx z-7x ------- + ------ z^2-49x^2 z+ 7x 28zx z-7x ---------- + -------- (z+7x)(z-7x) z+x 28zx (z-7x)(z-7x) -------- + ----------- (z+7x)(z-7x) (z+7x)(z-7x) 28zx + z^2-14zx+49x^2 ------------------------------ (z+7x)(z-7x) z^2+14zx+49x^2 ---------------- (z+7x)(z-7x) (z+7x)(z+7x) ------------ (z+7x)(z-7x) z+7x ------ z-7x
I started with the same mistake "cancelling" when I shouldn't lol
gw2011 did it right.
Yes, he was the first to post the result! :D