Hi I need help with this problem...

Construct the first three nonzero terms and the general term of the Maclaurin series generated by the function and give the interval of convergence:

In a page of my textbook it gives the general Maclaurin series for just cos(x) but when I ask my teacher whether it's just simply plugging in the (x+2), she says it's not. The question also gives the hint that but I am not sure what you can do with this hint?