If α and β are the zeros of the quadratic polynomial 
, find the value of 
.
Let 
and β are the roots of the given eqn
Sum of the roots = 
= 
= 
Product of the roots = 
= 
= 
= 
= 
= 
Using (a + b)2 = a2 + b2 + 2ab
On substituting values from above, we get
⇒ 
= 
7