中考一轮专题训练——整式的乘除
(一)填空题(每小题2分,共计24分)
1.a6·a2÷(-a2)3=________.
2.( )2=a6b4n-2.
3. ______·xm-1=xm+n+1.
4.(2x2-4x-10xy)÷( )=x-1-y.
5.x2n-xn+________=( )2.
6.若3m·3n=1,则m+n=_________.
7.已知xm·xn·x3=(x2)7,则当n=6时m=_______.
8.若x+y=8,x2y2=4,则x2+y2=_________.
9.若3x=a,3y=b,则3x-y=_________. |