Question

Help would very much be appreciated

Answer 1

a.

Explanation:

well, just put the parameters into the expression and do the calculations :

(((2+h)² + 2(2+h) - 1) - (2² + 2×2 - 1))/h

(((4 + 4h + h²) + 4 + 2h - 1) - 4 - 4 + 1)/h

(h² + 6h)/h = h + 6