Question

find a cubic polynomial whose zeros are -1,2,-3​

Answer 1

Answer:

x^3+x^2-5x-6

Step-by-step explanation:

if the zeros of the cubic polynomial are a,b,c then the cubic polinomial can be found as

x^3-(a+b+c)x^2+(ab+bc+ca)x-abc

let a=-1,b=2,c=-3

x^3-(-1+2-3)x^2+(-2-6+4)x-(-1)(2)(-3)

x^3-(-1)x^2+(-5)x-6

x^3+x^2-5x-6