1. ## Integrals

We just started integrals, and I wanna see if I did this right:

$\int (\frac {1}{x^7} - x^7 - \frac {1}{9})$

Gettin good at my LaTeX Except cant get negative exponents to work

so, I make ti easier, by doing powers, so I change them all to powers.

$x^-7 - x^7 - 9^-1$

do antideriv to get: $dx= \frac {-6}{x} - \frac {x^8}{8} - 9 + C$

Get it right?

2. $1/9$ is a constant, you don't integrate it like a variable. Just add a x to it. Also, for future reference, $\int 1/x \,dx \not= x$