i have a university assignment to do in C++ and i dunno what code to write can anyone help me?

this is my assignment:

develop a C program to approximately calculate the value of e(to the power x) applying this followong infinite series:

e(to power x) = (sum of sign, with infinity above it, and (n=o below) (x(to power n/n factorial)

in the range n=0,1...,10, and x=0.8

what is this? please help!