Question

if one of the zeros of the cubic polynomial x3+ax2+bx+c is -1,then the product of the other two zeroes

Answer 1

Answer:

c

Step-by-step explanation:

x^3+ax^2+bx+c

the product of roots= -c

i.e pqr = -c

pq(-1)= -c

pq= c

the product of other two roots is c

Answer 2

Let x y and z are it's zeroes

Where x=-1. Yz=. ............

xyz = d/ a

yz=-d/a

xy+yz+zx=c/a

-(y+z)+yz =c/a

1-b/a+ yz = c/a

Yz=. c+b-a/a