同底数幂的除法练习题一、基础训练题1.下面的计算是否正确?如有错误,请改正.(1)248aaa(2)ttt910(3)55mmm(4)426)()(zzz2.下面的计算对不对?如果不对,应该怎样改正?(1)236xxx(2)zzz45(3)33aaa(4)224)()(ccc3.下列计算中错误的有()A.1个B.2个C.3个D.4个5210)1(aaa55)2(aaaa235)())(3(aaa33)4(04.计算2232aa的结果正确的是()A.2aB.2aC.-aD.a5.写出下列幂的运算公式的逆向形式,完成后面的题目.nmanmamnannba6.计算(1)26aa(2))()(8bb(3)24)()(abab(4)232ttm(m是正整数)7.计算:(1)131533(2)473434)()((3)214yy(4))()(5aa(5)25)()(xyxy(6)nnaa210(n是正整数)8.计算:(1)25)aa((2)252323)()((3))()(224yxxy(4)239279.说出下列各题的运算依据,并说出结果.(1)23xx(2)23xx(3)23)(x(4)23)(xy(5)mmxxx2243)()(10.填空:(1)85aa(2)62mm(3)1032xxx(4)73)()bb((5)63)()(yxyx(6)822411.计算:(1)57xx(2)89yy(3)310aa(4)35)()(xyxy(5)236ttt(6)453ppp(7))()()(46xxx(8)112mmaa(m是正整数)(9)3512)(xxx(10)xxxxx431012(11)32673)()(xxx(12)279)3()3(252(13)232232432)()()(yxyxyx12.计算(1))2(2224yxxyyx(2)989yxxyyxyx13.填空aa1122==((aa33))(())==((aa22))(())==aa33aa(())==(())33==(())44⑵⑵3322﹒﹒99mm==33(())⑶⑶yy33nn==33,,yy99nn==..⑷⑷((aa22))mm++11==..⑸⑸[[((aa--bb))33]]22==((bb--aa))(())((66))若若44﹒﹒88mm﹒﹒1166mm==2299,,则则mm==..((77))如如果果22aa==33,,22bb==66,,22cc==1122,,那那么么aa、、bb、、cc的的关关系系是是..14.已知3,2yxaa,求yxa,yxa2,yxa32的值.15.(1)已知4,32baxx,求bax.(2)已知3,5nmxx,求nmx32.16..解关于x的方程:1333xxxxmm.17..若8127931122aa,求a的值.18.基础题.逆用的一组相关习题((11))2233××5533;;((22))2288××5588((33))((-55))1166××((-22))1155;;((44))2244××4444××((-00..112255))4419.混合运算习题:(1)a3·a4·a+(a2)4+(-2a4)2(2)2(x3)2·x3–(3x3)3+(5x)2·x7(3)0.25100×4100(4)812×0.1251320.计算:21)1(5.02200310010021.已知32m,42n求nm232的值。22.已知5nx,3ny求nyx22)(的值。整式的加减23.巩固练习:⑴计算:①(11x3-2x2)+2(x3-x2)②-3(a2b+2b2)+(3a2b-14b2)⑵若(x+2)2+│3-y│=0,求:3(x-7)-4(x+y)的值.24.提高拓展练习:⑴先化简,再求值:5x2-[3x-2(2x-3)-4x2],其中x=-21⑵已知A=x3+x2+x+1,B=x+x2,计算:A+2B;②2B-3A.