Evaluate each of the following when x=2, y -1
2 × × x × x2 × x2 × y × y2 × y
= x5y5
Verification:
When x = 2 and y = 1
R.H.S = x5y5
= (2)5 × (-1)5
= × 32 × -1
= - 16
Therefore,
L.H.S = R.H.S