Posted by **casey** on Sunday, March 25, 2012 at 3:49pm.

I have solved the following and I am writing just their answers with it, please let me know if these are correct. thanks

1. Simplify, and write in the base of 3: (9^x . 3^4x)^2

answer: 3^12x

2. Differentiate and simplify

y= (e^x - 1) / x^2

answer: (xe^x - 2e^x +2) / x^3

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