Question

if -1 and 2 are two zeroes of the polynomial 2y3-y2-5y-2 find third zero

Answer 1

Step-by-step explanation:

For this cubic polynomial

alpha + beta + gama = -b/a

-1 + 2 + gama = 1/2

1 + Gama = 1/2

Gama = -1/2

Third zero = -1/2