Solve this:


13. Find the values of a and b for which ax​3-11x2axb is exactly divisible by x2-4x-5.

14. If x22x-3 if a factor of f(x) , where f(x)=x46x32ax2bx-3a, then find .
(i) the values of a and b. (ii) the other quadratic factor of f(x).