(1614)2 can be written as
(1614)×(1614)
=(16+14)×(16+14)
=16×16+16×14+14×16+14×14
=256+4+4+116
=264116
The value of (1614)2 is equal to
Using the identity (x+y)2+(x−y)2=2(x2+y2)
Compute the value of 42+22