Question

Answer 1

a. \(\left(x^2y-2xy\right)\left(-3x^2y\right)=-3x^4y^2+6x^3y^2\)

b. \(x^2\left(x-y\right)+y\left(x^2+y\right)=x^3-x^2y+x^2y+y^2=x^3+y^2\)

Answer 2

a: \(=-3x^4y^2+6x^3y^2\)

b: \(=x^3-x^2y+x^2y+y^3=x^3+y^3\)

Answer 3

a. \(=-3x^4y^2+6x^3y^2\)

b.  \(=x^3-x^2y+x^2y+y^2=x^3+y^2\)