Question

the sum of n terms of an AP is 3nsquare +5n find the AP hence find its 15th term​

Answer 1

Answer:

3n2+5n

3(1)2+5

9+5

14

3(2)2+5(2)

36+10

46

therefore the ap is 14,46.....

a+14d

14+14(32)

448+14

462

I think it is correct