A.x3•x3=2x6 | B.(-x3)2=-x6 | C.(5x)3=125x3 | D.x5÷x=x5 |
A.a+a=a2 | B.a•a=2a | C.a÷a=1 | D.a-a=0 |
A.a2+2a3=3a5 | B.(2b2)3=6b6 |
C.(3ab)2÷(ab)=3ab | D.2a•3a5=6a6 |
A.a2•a3=a6 | B.a6÷a2=a4 | C.(a3)3=a6 | D.a5+a5=2a10 |
A.x5 | B.x45 | C.x12 | D.x18 |
© 2017-2019 超级试练试题库,All Rights Reserved.