Evaluate each of the following when x=2, y -1
× 
× 
× x2 × x × x2 × y × y2 × y2
= 
× x5 × y5
= 
x5y5
Verification:
When x = 2 and y = -1
R.H.S = 
x5y5
= 
(2)5 (-1)5
= 
× 32 × -1
= 56
Therefore,
L.H.S = R.H.S
33
Evaluate each of the following when x=2, y -1
× × × x2 × x × x2 × y × y2 × y2
= × x5 × y5
= x5y5
Verification:
When x = 2 and y = -1
R.H.S = x5y5
= (2)5 (-1)5
= × 32 × -1
= 56
Therefore,
L.H.S = R.H.S