If α and β are the zeros of the polynomial 2x2 + 7x + 5, write the value of α + β + αβ.
It is given in the question that, zeros of the polynomial 2x2 + 7x + 5 are 
Now by using the relationship between the zeros of the quadratic polynomial we have:
Sum of zeros = 
and product of zeros = 
= 
and 
∴ 
16