What is the 3rd term when #4f^3 + 19f + 16f^4 - 9f^2# is arranged in descending order?
3rd term =
To arrange the expression in descending order means writing the expression starting with the highest power , then the next highest etc. until you reach the lowest. If there was a constant term then it would be the lowest but there is not one here.
rewriting the expression in descending order :