Question

add and simplify if possible
z/z^2-36 + 9z/z^2-6z

Answer 1

Group the like terms.

Answer 2

z/z^2 - 36 + 9z/z^2 - 6z
z/z^2 + 9z/z^2 - 36 - 6z
10z/z^2 - 36 - 6z
Now we divide out an x from 10z/z^2 top and bottom.
10/z - 36 - 6z

Answer 3

And we are done!