Question

1/4x^3*(-2xy^2)+(-2x^2y)*(-1/2xy)*3xyz a(a^2+ab+b^2)+b(a^2+a

Answer 1

1/4x^3*(-2xy^2)+(-2x^2y)*(-1/2xy)*3xyz

=-1/2x^4y^2+3x^4y^3z

=1/2x^4y^2(6yz-1)

a(a^2+ab+b^2)+b(a^2+ab+b^2)

=a^3+a^2b+ab^2+a^2b+ab^2+b^3

=a^3+2a^b+2ab^2+b^3