How many millions are in a trillion?

What are “like terms”? why can we only add like terms?

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

What are the coordinates of the image of p for a dilation with center (0, 0) and scale factor 2