# math

posted by
**liz**
.

I'm not sure how to multiply (x^2+6x=9) by (x^2-1)

I would assume that you would have to distribute everything as normal, including the 9 ( the answer being x^4-x^2+6x^3-6x=9x^2-9)but I am really not sure because I havent done something like this before.