# I think my cal1 book may be wrong. Can someone take a look please.

#### thatsmessedup

here is the question
here is the answer in the back of the book

I suspect that they may have meant to write 9 and not 9x.... or im just new to this and not coming up with the correct answer. Thanks!

#### thatsmessedup

when I do that I get 2ln(|x-9|)

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