Answer:
-9 and +4 are the factors
Step-by-step explanation:
-9 times +4 is -36 and if you add +4 to -9, you get -5.
After this your function will look like this:
and then:
so the answer is:
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The function is undefinded if the denominator, x-5, equals 0.
So
.
The domain is
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In interval notation, this is (-infinity, 5) u (5, infinity).
So
The domain is
In interval notation, this is (-infinity, 5) u (5, infinity).