随堂演练
判断题
1. 2an·2an·2an=8a3n ( )
2.(3mn2)(7m2n)=21m3n3 ( )
3. 2(x+a)3·3(x+a)2=6(x+a)6 ( )
4. 4a3·2a3=6a ( )
5. 6x3·pxn=6px3n ( )
6.(2a2bc2)4an+1c3=8an+3bc5 ( )
7. (3a)2·(2a)2(a3)2+(a2)3=36a4 ( )
8. (3xy2)(4yz)(xy3z2)=12x2y6z3 ( )
答案
1. √ 2. √ 3. × 4. × 5. × 6. √ 7. √ 8. √
