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计算:[6xy2(x2-3xy)-(-3x2y3)]÷(3x2y2
人气:170 ℃ 时间:2019-12-19 16:06:05
解答
[6xy2(x2-3xy)-(-3x2y3)]÷(3x2y2
=[6x3y2-18x2y3+3x2y3)]÷(3x2y2
=[6x3y2-15x2y3]÷(3x2y2
=2x-5y.
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