Problem 4: Consider the following function: HS) = Hons) d(s) d(s) = $5 + 754 +683 +592 + 4s + 7 where: n(s) = 84 +683 + 582 + 4s + 3 Use MATLAB to find the following: a. n(-12) b. d(-4) c. H(-2) Problem 5: Use MATLAB to obtain the first and second derivatives of the following functions (make sure to obtain polynomial expressions): a. F(x)= x3 874 + 5x3 7x2 + 11x-9 b. F(x)=(x3 + 3x -8)(x2 +21) F(x) = (3x3 8r2 + 5x +9)/(x+2)