# Homework Help: Simplify derivative after using product and chain rule

1. Jun 4, 2012

### biochem850

1. The problem statement, all variables and given/known data

(x$^{2}$-x$^{-1}$+1)(x$^{3}$+2x-6)$^{7}$

2. Relevant equations
Chain Rule & Power Rule

3. The attempt at a solution

(x$^{3}$+2x-6)$^{6}$[(x$^{3}$+2x-6)(2x+x$^{-2}$)+7(3x$^{2}$+2)(x$^{2}$-x$^{-1}$+1)]

This is the farthest I've gotten but when I do additional computation I do not arrive at the correct simplified solution.

edit- should be "simplify derivative after using power rule and chain rule"
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Jun 5, 2012

### tiny-tim

hi biochem850!

looks ok so far

you've probably made a mistake with a minus somewhere later …

check them first …

if that doesn't help, then show us what you did ​