The endpoints of cd are c(-8, 4) and d(6,-6). what are
the coordinates of point p on cd such that p is the
length of the line segment from d?

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