SOLUTION: Can someone please help me with this problem: Perform the indicated operations. Give the answer in lowest terms. 9/z^2 - 6/z

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Question 161253: Can someone please help me with this problem:
Perform the indicated operations. Give the answer in lowest terms.
9/z^2 - 6/z
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
9%2Fz%5E2 - 6%2Fz
:
The common denominator is z^2, so we have:
%28%289-6z%29%29%2Fz%5E2 = %283%283-2z%29%29%2Fz%5E2; you can factor out 3