Posted by **help** on Saturday, March 24, 2012 at 4:27pm.

I have solved the following questions, let me know if they are correct, thanks.

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

answer: 3^12x

2. Differentiate and simplify

a. y= 3x^4 - 4e^x + 8

answer: 4(3x^3 - e^x)

b. y= (3 + 4e^x)^5

answer: 20e^x (3+ 4ex)^4

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

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

## Answer this Question

## Related Questions

- math - I have solved the following questions, let me know if they are correct, ...
- Math - I have solved the following and I am writing just their answers with it, ...
- Math - 1. Simplify, and write in the base of 3: (9^x . 3^4x)^2 answer: 3^12x 2. ...
- Math - 1. Simplify, and write in the base of 3: (9^x . 3^4x)^2 answer: 3^12x 2. ...
- Urgent Math please check - Very Important I can get someone to check these for ...
- Algebra - Can you please check my work? You have helped other students I know. ...
- Algebra (check my answers) - Please check these answers. Multiply -7(2a2 -4) = -...
- Polynomial- Doublecheck2 - I asked this earlier, but I didn't get an answer. I'm...
- calculus - I have been asked to solve this two different ways. The first way is...
- Math - Can someone please check my answers below for accurateness? The ...