(5x²y-y)(x-2y)-(x²+2y)(5x-3y)

Question

(5x²y-y)(x-2y)-(x²+2y)(5x-3y)

Answer 1

(5x²y-y)(x-2y)-(x²+2y)(5x-3y)=5x^3y- - -xy -10x^2y^2 + 2y^2 -5x^2 -10xy + +3x^2y +6y^2 =5x^3y -11xy--10x^2y^2+8y^2-5x^2+3x^2y