## Answer :

[tex]-2*y^3*4x^2*y^4+2y^5*9*x^2*y^2[/tex]

[tex]-2*y^3*4*x^2*y^4+2*y^5*9x^2y^2[/tex]

[tex]-8x^2y^7+18*x^2*y^7[/tex]

therefore

[tex]\boxed{\boxed{10*x^2*y^7}}[/tex]

**Step-by-step explanation:**

Answered

(-2*x^0*y^3)*(4x^2y^4)+(2y^5)*(3xy)^2

-2*y^3*4x^2*y^4+2y^5*9*x^2*y^2

-2*y^3*4*x^2*y^4+2*y^5*9x^2y^2

-8x^2y^7+18*x^2*y^7

therefore

\boxed{\boxed{10*x^2*y^7}}