(﹣2xy²)×(3x²y)²
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(﹣2xy²)×(3x²y)²
(﹣2xy²)×(3x²y)²
(﹣2xy²)×(3x²y)²
(﹣2xy²)×(3x²y)²
解,得:
==(﹣2xy²)×(3x²y)(3x²y)
==-18x^5y^4
(-2xy^2)*(9x^4y^2)
=-18x^5y^4
原式=-2xy²×9x^4y²
=-18x^5y^4