The question is as follows:
Write out the first 5 terms of the power series.
$\sum_{n=0}^\infty \frac{3^n}{n!}x^{3n+1}$
This is a web-based system and all I get is a single textbox with the following instructions:
Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question