Question

I have to add the following z/z^2-49 + 2/z+7

Answer 1

\[\frac{z}{z^2}-49+\frac{2}{z}+7=\frac{1}{z}-49+\frac{2}{z}+7=\frac{3}{z}-42\]

Answer 2

actually I should of wrote it out as z/(z^2-49) + 2/(z+7), does that make the answer different??

Answer 3

yes, it does

Answer 4

start w a common denom of (z+7) (z-7)

Answer 5

thats about as far as I got!!

Answer 6

z+2(z-7) all over (z+7)(z-7)

Answer 7

then the z-7 cancels out, right??

Answer 8

z+2z-7
--------
z^2-49

Answer 9

So is that the answer??