For the function g(x) = 2x^2-3x determine the following expression/quantity.

a. g(x+h) -g(x-h) / 2h =

Using the results of Part A

b. g(3.1)-g(2.9) / 0.1 =

to get started,

g(x+h) = 2(x+h)^2 - 3(x+h)
= 2x^2 - 3x + 4hx - 3h + 2h^2

for (b) it seems they have a typo. Maybe you can spot it.