
Replace f(x) and f(x+h) by using the equation given for the problem.

Open all parenthesis

Factor the h

Other terms not in the parenthesis cancel each other out

Now, simplify
8+2m^3 is the answer. Hope it help!
If the measure of the vertex angle is 30 degrees, then the measures of the base angles are 75 degrees.
The answer should be 31, if I’m doing this correctly.
6(3)2-5 (multiply 6 and 3, you get 18)
18(2)-5 (multiply 18 and 2, you get 36)
36-5 (subtract 36 and 5)
31