# Thread: constant in expansion?

1. ## constant in expansion?

i hope this is in the right forum...

find the term in the expansion of (w^2 + 2/w)^9 that is a constant.

i can't remember the formula/technique for finding constants...help please?
thank you!

2. Have a read of this.

http://www.wtamu.edu/academic/anns/m...4_bi_theor.htm

Look for the coefficent of $w^0$