SOLUTION: the question states, simpify be removing factors of 1. 9-z/z-9. this is what i got, (z+3)^2. i dont know if it is right so i was asking for some help please. thank you.

Question 466814: the question states, simpify be removing factors of 1. 9-z/z-9. this is what i got, (z+3)^2. i dont know if it is right so i was asking for some help please. thank you.
Found 2 solutions by stanbon, nerdybill:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the question states, simpify be removing factors of 1. 9-z/z-9. this is what i got, (z+3)^2.
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(9-z)/(z-9)
= [-(z-9))/(z-9)
= -[(z-9)/(z-9)]
= -1
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Cheers,
Stan H.
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Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
(9-z)/(z-9)
notice if I factor out a -1 from the numerator I get:
-1(-9+z)/(z-9)
then, if I reorder the terms inside the parenthesis:
-1(z-9)/(z-9)
Now, I can cancel like-terms leaving:
-1

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