2. Give the factorization of the equation x7+4x6+3xs-x" + 2x3+5x-9 from Horner's method. Also show the result value for each pass of Horner's method using the input x = 3 with the given polynomial. 3. The following algorithm is a variation of the standard polynomial evaluation meth How many (a) additions and (b) multiplications are performed by the algorithm for a polynomial of degree n? eval(x) pow = 1 for(i = n; i21,--i) pow = pow * x result = 0 powsave = pow for(i = 0; i n; i++) result - result + alil (powsave/pow) pow = pow /x return(result)