Question

8. If Hel zeroes of the cubic polynomial
P(x)=x2-3x3+x+1 are a-d, a,a+d find the zeroes.​

Answer 1

Answer:

1/3 is a zero of the polynomial,

⇒(x+

3

1

) will be one of the factors of the polynomial

Using long division method (refer attache image) we know the quotient =(3x

2

−6x−9)

Factorizing the quotient,

(3x

2

−6x−9)=(3x

2

−9x+3x−9)=3x(x−3)+3(x−3)=3(x+1)(x−3)

From the above equation we can say, the other 2 zeroes of the polynomial are x=−1,3

Answer 2

Answer:

-4 is the zero of this value