Answer:9x6y4
Step-by-step explanation: hope it helps, I tried my best
Answer: = 9x^6 - y^4
Step-by-step explanation:
(3x^3 -y^2)^2
3^2 - 3x3= 9x^3 - 3x2 = 9x^6
-y^2 x 2 = -y^4
= 9x^6 - y^4
