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(6-2xy)(2-6xy)=4(3-xy)(1-3xy)
如题,(6-2xy)(2-6xy)怎样化到4(3-xy)(1-3xy)?
人气:282 ℃ 时间:2020-10-01 12:36:12
解答
(6-2xy)(2-6xy)
=[2(3-xy)][2(1-3xy)]
=2*2(3-xy)(1-3xy)
=4(3-xy)(1-3xy)
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