sam071
sam071
19-07-2017
Mathematics
contestada
Write log(x^2-9)-log(x+3) as a single logarithm.
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sergibcnusa
sergibcnusa
19-07-2017
One way: log(A)-log(B) = log(A/B) right?
So, log( x^2-9/(x+3))
Now x^2-9 = (x+3)*(x-3), and x^2-9/(x+3) = x-3,
so log(x^2-9)-log(x+3) = log(x-3),
Indeed for all x but for x = -3, but probably no one asks you about that detail?
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shadowvenom7I8
shadowvenom7I8
23-06-2020
Answer:
b edge
Step-by-step explanation:
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