Solve these with matlab

Plot y = 3x2 + 9x + 5 using fplot. If youre using an older version of Matlab then ezplot is fine as well. Assigning this to p20 is just a way of the grading software checking it. Assign to p20.

The goal of this for loop is to add the numbers 2, 4, 6, ..., 354. Set the variable p21 equal to 0. Then run a for loop which goes through all those numbers, adding them each in turn to p21, changing p21 each time.

The goal of this while loop is to find the first number whose factorial has 46 digits (meaning its at least equal to 1045). Set the variable p22 equal to 1. Then, while p22! is less than 1045, increase p22 by 1, changing p22 each time. Note that Matlab has a command for factorial.