A.(a2)3=a5 | B.2a•3a=6a2 | C.2a-a=2 | D.a6÷a2=a3 |
A.x5+x5=x10 | B.x5•x5=x10 | C.(x5)5=x10 | D.x20÷x2=x10 |
A.x+x3=x4 | B.(x-4)2=x8 |
C.x-2•x5=x3 | D.x8÷x2=x4(x≠0) |
A.x3-x2=x | B.a10÷a9=a | C.(-3pq)2=6pq | D.x3•x2=x6 |
A.a3+a3=2a3 | B.a2•a3=a5 | C.(-a3)2=a9 | D.2a3÷a2=2a |
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