Question

what is the nth term of this sequence (1×3),(2×4),(3×5)​

Answer 1

The nth term of the sequence will be:-

n×(n+2) = $n^{2}$$+2n$

Here is how-

First number is 1,2,3.....n

Second number is (1+2),(2+2),(3+2)...........(n+2)

Thus, the number is $n^{2} +2n$