Let \(a_n = 4n^3 + 6n^2 + 4n + 1.\) Find \(a_8 + a_9 + a_{10} + \dots + a_{23}.\)
Please help me!
Look at each of the separate terms as follows:
wait, so simply plug in v=8 and w=23 into each of the equations and add the results up?
That's right!
listfor(n,8,23,(4*n^3+6*n^2+4*n+1))
(2465, 3439, 4641, 6095, 7825, 9855, 12209, 14911, 17985, 21455, 25345, 29679, 34481, 39775, 45585, 51935)=327,680
