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A.2a2-a2=a2 | B.(a2)3=a5 | C.a3÷a3=1(a≠0) | D.a2•a3=a5 |
A.x3•x3=x6 | B.3x2÷2x=x | C.(x2)3=x5 | D.(x+y)2=x2+y2 |
A.(a3)4=a7 | B.a6÷a3=a2 | C.(m+n)2=m2+n2 | D.a3•a4=a7 |
A.(a-b)2=a2-b2 | B.a3•a2=a6 | C.a3÷a2=a | D.(a3)3=a6 |
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