Question

how 2 do?

(n)(n+7)(n+8)

Answer 1

Answer:

$n^{3} + 15n^{2} + 56n$

Step-by-step explanation:

First FOIL  (n + 7)(n + 8) and then distribute n

(n + 7)(n + 8) = $n^{2} +15n + 56$

 n ($n^{2} +15n + 56$)

= $n^{3} + 15n^{2} + 56n$