## anonymous 5 years ago need help with this calc problem using substitution. 3 sqrt 2-x over x exp7. thks

1. anonymous

use the equation toolbox and write out the equation. What you described is unclear.

2. anonymous

ok $\int\limits_{1}^{2} \sqrt[3]{2-6} / x^{7}$

3. anonymous

this is integration?

4. anonymous

sorry.. forgot the dx

5. anonymous

okay. so take out the cuberoot(2-6) outside the integral. you will have $\sqrt[3]{2-6} \int\limits_{1}^{2}x ^{-7}dx$. That is fairly straightforward to solve