(4a-b).(-2b³)=? 6x²(x-0.5)=?要过程
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(4a-b).(-2b³)=? 6x²(x-0.5)=?要过程
(4a-b).(-2b³)=? 6x²(x-0.5)=?
要过程
(4a-b).(-2b³)=? 6x²(x-0.5)=?要过程
(120a-30b)(-2b3)=-240ab3+60b4
6x3-3x2