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A.2a2+3a2=5a4 | B.a•a2•a3=a6 |
C.(-2b)2=-2b2 | D.(a2)3=a5 |
A.(2x2)3=8x6 | B.5a2b-2a2b=3 |
C.x6•x6=1 | D.x6÷x2=x3 |
A.5 | B.6 | C.17 | D.36 |
A.(-1)3和|-1|5 | B.(-1)2与21 | C.(-5)2与-52 | D.-35与(-3)5 |
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