单项式乘以单项式.doc

文档介绍：(一)()·2a2=·3x4=·4x3=·5y3=()A.(-)·()=-.(-8a3bc)·=a4b2cxC.(-2an)2·(3a2)3=-54a2n++2·(-3xn+2)=-3x3n+、宽、高分别是3x-4,2x和x,则它的体积是()----,运算结果为a2-3a-18的是()A.(a-2)(a+9)B.(a-6)(a+3)C.(a+6)(a-3)D.(a+2)(a-9)5.(-x5)2·(-x5·x2)2=.6.(xn)2+5xn-2·xn+2=.7.=.8.(4×103)3·(-×102)2=.9.()·()=.(-2ax2)=.·=-.(1)(-3an+2b)3(-4abn+3)2;(2)(-7a2xn)(-3ax2)(-amxn)(m>0,n>0);.-2a3x511.-yz12.(1)-432a3n+8b2n+9.(2)-2lam+3x2n+2.