A.a2+a3=a5 | B.a2×a4=a8 | C.(a2)3=a6 | D.a6÷a2=a3 |
A.x2+x4=x6 | B.2x+3y=5xy | C.(x3)2=x6 | D.x6÷x3=x2 |
A.a6-a2=a4 | B.ab+ba=2ab | C.a6÷a3=a2 | D.(a3)2=a9 |
A.-1 | B.1 | C.
| D.
|
A.(-1)-3=13 | B.(-2)2×(-2)3=26 |
C.(-5)8÷(-5)2=-56 | D.(-4)0=1 |
A.x2 | B.x
| C.x8 | D.1 |
© 2017-2019 超级试练试题库,All Rights Reserved.