Question

ayudenme porfavor
a) (1/2x+3y-22)- (3/2x-2y)

b) (-3x²y-2xy²-xy) (x²-y²)

Answer 1

a)
     1/2x+3y-22-3/2x+2y=
     =  - x +5y - 22

 b)  -3x^4y + 3x^2y^3 -2x^3y^2 +2xy^4 - x^3y + xy^3