Hi i just got introduced to Taylor and Maclaurin series in my calculus class and it was a very short explanation at the end of class. When i got to do doing my homework i found i had no idea where to begin, can someone help? i got the base idea but what to do is beyond me

Find Taylor series for f(x) centered at the given value of a[assume that f has power series expansion. do not show that r_n_(x) goes to 0]

f(x) = 1 + x + x^2

Centered at a = 2