9. Question 9 (Extra Credit 10 pts). Let P(x) be a polynomial defined as follows: P(x) = a,x" + an-13"-1 + ... + x + ao The following piece of code evaluates P(x) by using 2n multiplications. y = ao X;=1 for i=1 to n X; = x x y = y +a;X; Give a short algorithm which uses n multiplication