E
Editor
Sep 18, 2022
If $f(x)=x^{3}+2x^{2}-1$, what is the value of $\frac{f(a+h)-f(a)}{h}$=
Difficulty: Easy
A:
$3h^{2}+(3a+2h)+a^{2}+3a$
B:
$h^{2}+(3a-h)2+2a^{2}+3a$
C:
$h^{2}+(2a+3)h+3a^{2}-4a$
D:
$h^{2}+(3a+2)h+3a^{2}+4a$
ID: 63273db8ca83163ac3a10473