( )·2x²y=10x³y²-8x²y²( )·2x²y=10x³y²-8x²y²
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( )·2x²y=10x³y²-8x²y²( )·2x²y=10x³y²-8x²y²
( )·2x²y=10x³y²-8x²y²
( )·2x²y=10x³y²-8x²y²
( )·2x²y=10x³y²-8x²y²( )·2x²y=10x³y²-8x²y²
( 5xy-4y )·2x²y=10x³y²-8x²y²
你抄错题了吧
10x³y²-8x²y²=2x²y 。(5xy-4y)