Answer
$9x^4y^6$
Work Step by Step
RECALL:
(i) $(a^m)^n = a^{mn}$
(ii) $(ab)^m=a^mb^m$
Use the rules above to have:
$=3^2(x^2)^2(y^3)^2
\\=9x^{2(2)}y^{3(2)}
\\=9x^4y^6$
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