Question

3 Find all the zeroes of the polynomial x3+3x2-4x-12, if one of its zeroes is -3.​

Answer 1

Answer:

alpha+beta=3/1

-3+beta =3

beta =3+3

=6

alpha*beta. =4/1

alpha*6. =4

alpha. =4/6

alpha. =2/3

The all other zeroes are 3,6 and2/3