Question

E= n^2 + n +5 if n =3

Answer 1

17

Explanation:

Given

n² + n + 5 ← substitute n = 3 into the expression

= 3² + 3 + 5

= 9 + 3 + 5

= 17

Answer 2

Explanation:

Putting value of n = 3 in equation

(3)2 + 3 + 5

9 + 8

= 17