A.a4•a2=a6 | B.5a2b-3a2b=2 |
C.(-a3)2=a5 | D.(3ab2)3=9a3b6 |
A.a3•a4=a12 | B.(-a3)4=a12 | C.(ab)2=ab2 | D.3a-4a=12a |
A.17 | B.36 | C.54 | D.72 |
A.(a+b)2009=0 | B.(a-b)2009=0 | C.(a¡¤b)2009=0 | D.(|a|+|b|)2009=0 |
A.x5+x5=x10 | B.a3•a2=a6 |
C.(-2x3)2=-4x6 | D.3a2•4ab=12a3b |
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