2 |
3 |
2 |
3 |
1 |
3 |
1 |
3 |
A.8x6÷2x2=4x3 | B.10x6÷5x3=
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C.(-2x2y2)3÷(-xy)3=-2x3y3 | D.(-xy2)2÷(-x2y)=-y3 |
2a•3a•5a |
(-30)a |
A.4x2y•(-
| ||||
B.(-24a2b3)÷(-3a2b)•2a=16ab2 | ||||
C.(a10÷a4)2÷(a8÷a5)÷
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D.4a5b3c2÷(-2a2bc)2=abc |
A.3y+4x-1 | B.3y-4x-1 | C.3y-4x+1 | D.3y-4x |
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