A.(-x6)÷(-2x2)=3x3 | B.a+a=a2 |
C.(a3)2=a6 | D.x3•x4=x12 |
1 |
2 |
A.a2•a3=a6 | B.(a2)3=a5 | C.2a+3a=5a | D.a3-a=a2 |
A.a2+a5=a5 | B.(-a2)3=a6 |
C.a2-1=(a+1)(a-1) | D.(a+b)2=a2+b2 |
A.x3-x2=x | B.4x2-(2x)2=0 | C.x3•x2=x6 | D.(-3a)2=6a2 |
A.
| B.(2a)3=6a3 | C.6a-2a=4 | D.2
|
© 2017-2019 超级试练试题库,All Rights Reserved.