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下列等式成立的是( ) A.(a2)3=a6 B.2a2-3a=-a C.a6÷...
下列等式成立的是( )
A.(a2)3=a6
B.2a2-3a=-a
C.a6÷a3=a2
D.(a+4)(a-4)=a2-4
考点分析:
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