Answer
$12x^{5}y^{4}$
Work Step by Step
$(2x^{3}y)^{2}(3x^{-1}y^{2})=4x^{6}y^{2}*3x^{-1}y^{2}=4*3x^{6-1}y^{2+2}=12x^{5}y^{4}$
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