1\Show that the polynomial, P(x)=x^n +ax+b, n≥2
(a,b)∈R^2 has at most 3 real distinct roots.
2\Show that the equation x^4 +4ax+b=0 has no
more than 2 real distinct roots.
In the a sport camp, 65% children know
playing the football,70%−in voleyball,75%−in
basketball.What is least number of children who
know playing all above three sport games?
(Answer 10%)