科目:初中數(shù)學 來源: 題型:閱讀理解
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科目:初中數(shù)學 來源: 題型:
| A、x3y•(-2x3y)2=-4x6y3 | ||||||
| B、(-x)(-x2+2x-1)=x3-2x2+x | ||||||
C、(
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| D、(3a-5b)(-3a+5b)=9a2-25b2 |
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科目:初中數(shù)學 來源:江西省期中題 題型:單選題
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