分解因式 1.3x²y-6xy= 2.5x²y³-25x³y²= 1.3x²y-6xy=2.5x²y³-25x³y²=

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分解因式 1.3x²y-6xy= 2.5x²y³-25x³y²=
1.3x²y-6xy=
2.5x²y³-25x³y²=

1.3x²y-6xy
=3xy(x-2)
2.5x²y³-25x³y²
=5x²y²(y-5x)