If the sum of the zeros of the quadratic polynomial 
is equal to their product, find the value of k.
Let one root of the given quadratic polynomial is 
Other root of the given quadratic polynomial is β
Sum of the roots = 
= 
= 
Product of the roots = 
= 
= 
= 3
According to the question: sum of zeros = product of zeros
= 3
k = 
12