Quant Boosters  Vikas Saini  Set 5

let f(x) = ax^2 + bx + c
f(1) = a + b + c = 0.
Product of roots = c/a.
Hence option d.

@vikas_saini Thanks bro...very neat and nice explanation....keep doing this...perfect questions with perfect solutions...Thanks alot...:)

shouldn't we also consider the values less than 8? 1, 2, 3, 4, 5,6, 7?
as these would give negative results too.. please clarify.