Let f(x) be a polynomial of degree 5 such that fx=0  has 8 real distinct. Then number of real roots of f(x) = 0 is _______

Since  fx=0  has  8  roots⇒  fx   =0  has   4  real  positive  roots  but  since fx  is      polynomial   of   degree  5⇒ fifth  root is  also real.∴   Number  of  real  roots  of  fx=0  is  5