Question

find cubic polynomial whose zeros are 3 , 1/2 and -1

Answer 1

a+b+c = 3+1/2 -1 = 5/2
Ab+bc+ca= 3/2 -3-1/2 = -1
abc = -3/2
Equation
X^3 - (5/2) x^2 + (-1)x - (-3/2) =0
2x^3 - 5x^2 -x - 3 = 0