Thread: Expansion of (x-(3/x^2)^9

In the expansion of (x-(3/x^2)^9 find the following:

a) the term containing x6

b) the constant term

This is my last question, I swear! :P

Originally Posted by acc

In the expansion of (x-(3/x^2)^9 find the following:

a) the term containing x6

b) the constant term

This is my last question, I swear! :P

The general term is .

a) You require the coefficient of the power of x corresponding to 9 - 3r = 6.

b) You require the coefficient of the power of x corresponding to 9 - 3r = 0.