plug in x=2 and x=1/2, you obtain system of two equations, easy to solve. answer is f(2)=-7/4.
Thanks mr.plato.....i knew it's my prob.....u didn't need to tell me tht...i was expecting only what u send-"a hint".......
nyways.....there is another question.....again i would appreciate a hint....
f is a real valued function given by , and a,b are roots of . Then
1. f(a) not equal to f(b), 2.f(a)=10, 3.f(b)=-10, 4. none of these.