So tomorrow I need to explain a problem to the class, I know the correct answer is 3, i just do not know how to show the work necessary to explain it.

Here is the problem:

What is the coefficient of x^2 in the Taylor series for 1/((1+x)^2) about x=0.

(A) 1/6 (B) 1/3 (C) 1 (D)3 (E)6

Thanks for the help.