Answer:
The answer is 2x^2 - xy^2 - 6y^4
Step-by-step explanation:
2xx + 2x(-2y^2) + 3y^2x + 3y^2(-2y^2)
2xx - 2 · 2xy^2 + 3xy^2 - 3 · 2y^2y^2
= 2x^2 - xy^2 - 6y^4
