A.同底数的幂相加,底数不变,指数相乘 |
B.同底数的幂相乘,底数合并,指数相加 |
C.同底数的幂相乘,指数不变,底数相加 |
D.同底数的幂相乘,底数不变,指数相加 |
A.(2ab)2=2a2b2 | B.(a+b)2=a2+b2 | C.a5+b5=2a10 | D.(a2+a)÷a=a+1 |
A.x+x=2x2 | B.x3•x2=x6 | C.(x4)2=x8 | D.(-2x)2=-4x2 |
A.x3+x3=x6 | B.x3•x3=x9 |
C.(x2)3=x5 | D.(-3x3)÷(-x)=3x2 |
A.a3•a4=a12 | B.(a3)4=a7 | C.(a2b)3=a6b3 | D.a3÷a4=a(a≠0) |
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