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(9x3y2-6x2y+3xy2)÷(-3xy)
人气:259 ℃ 时间:2020-06-02 06:54:51
解答
(9x3y2-6x2y+3xy2)÷(-3xy),
=9x3y2÷(-3xy)-6x2y÷(-3xy)+3xy2÷(-3xy),
=-3x2y+2x-y.
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