Question 63033
a^2 - ya - y(a-y) if y = -3 nad a = 1/3
=[(1/3)^2]-[(-3)(1/3)]-[(-3)(1/3 -(-3))]
=[1/9]-[-1]-[-1-9]
=[1/9]+1+10
=11 1/9 
or 100/9
Cheers,
Stan H.