题目内容
【题目】（____________）÷0.3 x3y2＝27 x4 y3+7 x3 y2-9 x2y.
【答案】8.1x7y5+2.1 x6y4-2.7 x5 y3
【解析】0.3x3y2(27x4y3+7x3y2-9x2y)＝8.1x7y5+2.1x6y4-2.7x5y3，故答案为8.1x7y5+2.1x6y4-2.7x5y3.
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题目内容
【题目】（____________）÷0.3 x3y2＝27 x4 y3+7 x3 y2-9 x2y.
【答案】8.1x7y5+2.1 x6y4-2.7 x5 y3
【解析】0.3x3y2(27x4y3+7x3y2-9x2y)＝8.1x7y5+2.1x6y4-2.7x5y3，故答案为8.1x7y5+2.1x6y4-2.7x5y3.
