计算:-x(3xy-6x²y²)÷3(-x)²
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计算:-x(3xy-6x²y²)÷3(-x)²计算:-x(3xy-6x²y²)÷3(-x)²计算:-x(3xy-6x²y²
计算:-x(3xy-6x²y²)÷3(-x)²
计算:-x(3xy-6x²y²)÷3(-x)²
计算:-x(3xy-6x²y²)÷3(-x)²
-x(3xy-6x²y²)÷3(-x)²
=(-3x²y-6x³y²)÷3x²
=(-3x²y)÷3x²-(6x³y²)÷3x²
=-y-2xy²
=﹣3x²﹙y-2xy²﹚÷3x²
=﹣y﹢2xy²
=y﹙2xy-1﹚