A.(a3)2=a5 | B.-2x-3=-
| ||
C.3a2•2a3=6a6 | D.a5÷a3=a2(a≠0) |
2 |
x3 |
A.(-3)-2=
| B.(
| ||||
C.am÷an=am•a-n; | D.(-3)-2=6 |
A.(a2)3=a5 | B.(-
| ||||
C.a6÷a3=a2 | D.a2•a3=a5 |
A.4a3•2a3=8a9 | B.4a3+2a3=6a6 | ||
C.(-2a3)3÷(-2a3)2=-2a3 | D.102006•(-
|
b |
a |
A.a=0 | B.b=0且a≠0 | C.a=b=0 | D.a=0且b=0 |
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