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1. (1) 15x⁵; (2) - 8xy³; (3) 36x⁴;(4)-72a⁵.
2.(1)不对,3a³•2a² =6a⁵;
(2)对;
(3)不对,3x²•4x² =12X⁴;
(4)不对,5y³•3y⁵ =15y⁸.
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05网免费提供各类练习与测试答案,请牢记零五网网址:05W.CC
1. (1) 15x⁵; (2) - 8xy³; (3) 36x⁴;(4)-72a⁵.
2.(1)不对,3a³•2a² =6a⁵;
(2)对;
(3)不对,3x²•4x² =12X⁴;
(4)不对,5y³•3y⁵ =15y⁸.
http://m.ksjqmj.com/shuxuekebendaan/24802.html
推荐访问