1 |
8 |
1 |
4 |
1 |
8 |
1 |
3 |
1 |
9 |
1 |
3 |
A.a2•a3=a6 | B.(x3)3=x6 | C.33=9 | D.3b•3c=9bc |
A.20073+20073 | B.(20073)3 |
C.(-20072)3 | D.(-2007)5•(-2007) |
A.3a+2a=5a2 | B.(2a+b)(2a-b)=4a2-b2 |
C.2a2•a3=2a6 | D.(2a+b)2=4a2+b2 |
A.a3•a2=a6 | B.(a+b)(a-b)=a2-b2 |
C.(a+b)2=a2+b2 | D.(a+b)(a-2b)=a2-2b2 |
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