2/3 of 18 i need help on mobymax please

Find two rational expressions that have the difference of 2-n/n-4

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

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