Question

If a, b be the zerkes of the polynomial 3+3x-x^2, then a+b is?

Answer 1

Let p(x)= -2x²+3x+3
and it is given that a&b are zeroes of poly.
So, (a+b)= sum of zeroes
and we know, sum of zeroes= - ( co-efficient of x/ co-efficient of x ²
i.e, -b/a= -3/2

Hence sum of zeroes = (a+b)= -3/2

I hope it helps you....