If the zeros of the polynomial 
are in A.P., find the value of k.
Let 
are the zeros of the given polynomial.
Sum of the zeros = 
⇒ 
= 
⇒ 
= 
⇒ 
=
Since 
is the zero of the polynomial, therefore 
On substituting 
=
⇒ 
6
If the zeros of the polynomial are in A.P., find the value of k.
Let are the zeros of the given polynomial.
Sum of the zeros =
⇒ =
⇒ =
⇒ =
Since is the zero of the polynomial, therefore
On substituting =
⇒