Jawaban nya gan....

1

[(3^2 xy^3)/(3^3 x^-1 y^2)]^2
= (3^-1 x^2 y)^2
= 3^-2 x^4 y^2


2)
[(2x^-5 y^3)/(8x^3 y^-2)]^2
= (1/4 x^-8 y^5)^2
= 1/16 x^-16 y^10