pls help-
( x^(3/2) + y^(3/2) / x - y ) - ( x / x^(1/2) + y^(1/2) ) - ( y / x^(1/2) - y^(1/2)
divided by
( x^(1/2) y^(1/2) ( x^(1/2)+y^(1/2) )^-1 )
simplify