(-2X²y³)²﹡(xy)³ 怎样算?

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(-2X²y³)²﹡(xy)³ 怎样算?
(-2X²y³)²﹡(xy)³ 怎样算?

(-2X²y³)²﹡(xy)³ 怎样算?
(-2X²y³)²(xy)³
=(-2)^2*x^(2*2+3)*y^(3*2+3)
=4x^7y^9.