4x |
42y |
4x |
(4y)2 |
2 |
9 |
A.x3•x2=x6 | B.x2+x3=x5 | C.(x2)3=x5 | D.x2÷x-1=x3 |
1 |
5 |
A.(-2y)3=-6y3 | B.(-ab2)3=-ab6 | C.(-a)3÷(-a2)=a | D.(
|
A.x2+x3=x5 | B.x4•x2=x6 | C.x6÷x2=x3 | D.(x2)3=x8 |
A.a3•a2=a6 | B.a6÷a3=a3 | C.(a-b)2=a2-b2 | D.(-a2)3=(-a3)2 |
© 2017-2019 超级试练试题库,All Rights Reserved.