整式的除法专题训练

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整式的除法专题训练 (一)填空1．4x4y2÷(-2xy)2=______．3．2(-a2)3÷a3=______．4．______÷5x2y=5xy2．5．ym+2n+6=ym+2·______．6．______÷(-5my2z)=-m2y3z4．7．(16a3-24a2)÷(-8a2)=______．8．(m+n)2(m-n)÷(m+n)2=______．10．(-8x4y+12x3y2-4x2y3)÷(4x2y)=______．11．(a+b)(a-b)(a4+a2b2+b4)÷(b6-a6)=______．12．(a3+2a2+a+1)÷(a2+a-1)的余式是______．13．(6x6-4x5+2x4-x-5)÷(2x4-x-3)，则商式为______，余式为______．14．用A表示一个多项式，如果A(x2+xy+y2)=x3-y3，那么A=______．15．已知a≠b，且a(a+2)=b(b+2)，则a+b的值是______．16．6x6-6x5+3x4+6x3+10x2-8x+1=(6x4-4x+2)×(______)+(______)．17．多项式2x3+6x2+6x+5除以一个多项式A，商为x+1，余式5x+8，那么除式A为______．18．(2m3+bm2+2m+2)÷(m2+m-1)的余式是2m+4，则b=______．19．已知(3x3+nx+20)÷(x2+2x-3)所得余式为3x+2，则n=______．20．如果4x3+9x2+mx+n能被x2+2x-3整除，则m=______，n=______．21．x3+4x2+5x+2用整式______除，则商式和余式都是x+1．8 22．已知(3x3+nx+m)÷(x2+2x-3)所得余式为3x+2，则m=______，n=______．23．已知x2-3x-2=0，则-x3+11x+6=______．(二)选择24．21a8÷7a2=                                                  [   ]A．7a4；B．3a6；C．3a10；D．3a16．25．x9y3÷6y2=                                                   [   ]A．x3y；B．x3y3；C．x3y2；D．x3．26．28a4b2÷7a3b=                                               [   ]A．4ab2；B．4a4b；C．4a4b2；D．4ab．      [   ]A．8xyz；B．-8xyz；C．2xyz；D．8xy2z2．28．25a3b2÷5(ab)2=                                            [   ]A．a；B．5a；C．5a2b；D．5a2．29．正确地进行整式运算可得                              [   ]A．2x+3y=5xy；B．4x3y-5xy3=-xy；C．3x3·2x2=6x6；D．4x4y3÷(-2xy3)=-2x3．30．下列计算正确的[   ]是                                                               A．aman=a2m；B．(a3)2=a5；C．a3m-5÷a5-m=a4m-10；D．x3x4x5=x60．8 31．下列计算错误的是                                     [   ]A．(x4)4=x16；B．a5a6÷(a5)2÷a=a2；C．(-a)(-a2)+a3+2a2(-a)=0；D．(x5)2+x2x3+(-x2)5=x5．32．(x4y+6x3y2-x2y3)÷3x2y=                                       [   ]A．x2+2xy-y2；                                                                                            [   ]34．下列整式除法正确的是                                  [   ]A．(3x2y3+6x2y2)÷3xy2=xy+2xy；B．(5a2b4-25a3)÷(-5b4)=-a2+5a3b4；C．(2x2-5x-3)÷(x-3)=2x+1；D．(a+b)4(a-b)÷2(a+b)(a2-b2)=2(a+b)2×(a-b)．35．(2x3-5x2+3x-2)÷(-x+1+2x2)=                              [   ]A．x+1；B．x-1；C．x+2；D．x-2．36．(x2+2xy-8y2+2x+14y-3)÷(x-2y+3)=                       [   ]A．x-4y-1；B．x+4y+1；C．x+y；D．x+4y-1．8 37．(x3+2x2+x+1)÷(x2+x-1)的余式是                            [   ]A．x+1；B．x-1；C．x+2；D．x-2．38．(1+x+2x2+x3)÷(x2+x-1)的余式是                                         [   ]A．x+1；B．x+2；C．x-1；D．x-2．39．除式=6x2+3x-5，商式=4x-5，余式=-8，则被除式为            [   ]A．(6x2+3x-5)(4x-5)+8；B．(6x2+3x-5)÷(4x-5)-8；C．(6x2+3x-5)+(4x-5)×(-8)；D．(6x2+3x-5)(4x-5)-8．40．(x3-2x2+ax+2)÷(x2-4x+1)=x+2，则                                      [   ]A．a=-7；B．a=7；C．a=7x；D．a=-7x．41．(x3-3x2-9x+23)=(x2-x-11)·N+1，则N=                               [   ]A．x-2；B．x+2；C．-x-2；8 D．-x+2．42．若x3-3x2+ax+b能被x-2整除，则                                        [   ]A．a=9，b=22；B．a=9，b=-22；C．a=-9，b=22；D．a=-9，b=-22．43．9x4-6x2y2+y4=(3x2-y2)·M，则M=                                        [   ]A．3x2+y2；B．(3x)2-y2；C．(3x)2+y2；D．3x2-y2．44．如果4x3+9x2+mx+n能被x2+2x-3整除，则                           [   ]A．m=10，n=3；B．m=-10，n=3；C．m=-10，n=-3；D．m=10，n=-3．45．(3x-4x2+x4-4)=M·(x2+2x-1)+(-x-3)，则M为                     [   ]A．x2+2x+1；B．x2-2x+1；C．-x2+2x+1；D．x2+2x-1．8 46．多项式x2+x+m能被x+5整除，则此多项式也能被下述多项式整除的是   [   ]A．x-6；B．x+6；C．x-4；D．x+4．47．3x4-2x3-32x2+66x+m能被x2+2x-7整除，则m为                 [   ]A．35；B．-32；C．-35；D．32．(三)计算48．-3(ab)2·(3a)2·(-ab)3÷(12a3b2)．50．(2mn)2·(m2+n2)-(m2n2)3÷m3n4+3m2n4．51．162m÷82n÷4m×43(n-m+1)．整数)．53．(4xn-1yn+2)2÷(-xn-2yn+1)．54．[2yx3+(-2y3-2y2-1)x2+(2y4+y2+y)x-y3]÷(2xy-1)÷(x-y)．55．(x2a+3b+4c)m÷[(xa)2m·(x3)bm·(xm)4c]．56．四个连续奇数的第二个数是2n+1，已知前两个数的积比后两个数的积少64，求这四个奇数．8 57．利用竖式除法计算(4+2x3-5x2)÷(x-2)．58．用竖式除法计算(2a3+3a-3+9a2)÷(4a+a2-3)．59．(6x4-3x3-7x-3)÷(2x2-x-2)．60．长方形面积是x2-3xy+2y2，它的一边长是x-y，求它的周长．61．(a5-2a4b-4a3b2+b5)÷(a3+2ab2+b3)．62．x(13x2+3x3-1)÷(x2+4x-3)．63．(2x4+7x3-12x2-27x)÷(2x2+3x)÷(x-2)．64．(x5+x4+5x2+5x+6)÷(x2+x+1)÷(x+2)．65．已知整式A=x3-1+x-x2，B=x2-3x+5，求A÷B的商和余式．66．求[4yx4-2x3+yx2-1]÷(x-y)÷(2xy-1)的商式和余式．67．已知除式=3x2+2y，商式=9x4-6x2y+4y2，余式=x-8y3，求被除式．68．已知除式=2x3-3x2+1，商式=x+2，余式=6x2-2，求被除式．69．已知被除式=x4+y4，商式=x3+x2y+xy2+y3，余式=2y4，求除式．70．已知被除式=18x4+82x2+56-71x-45x3，商式=6x2-7x+8，余式=16-4x，求除式．71．一个多项式除以x2+3x-5，商式为x2+x+1，余式为2x-1，求这个多项式．73．已知被除式=4x3+2x2-1，除式=2x-4，余式=39，求商式．74．已知被除式=x5-4x3+2x2+1，除式=x+2，商式=x4-2x3+2x-4，求余式．75．已知x-2能整除x2+kx-14，求k的值．76．已知3x-1能整除6x2+13x+b，求b的值．77．求多项式[2x4-5x3-26x2-x+28]÷(x-1)÷(2x+3)÷(x+2)的商式和余式．78．已知多项式3x3-13x2+18x+m能被(x-1)(x-2)整除，其商为3x+n，求m，n的值．8 79．已知多项式x3+3x2+ax+b能被x+2整除，且商式被(x-3)除时余3，求a，b的值．80．若多项式(a+b)x2+2bx-3a以x+1和x+2除之分别余1和-22，试求a，b的值．81．已知x3+(a+b)x2+(-2a+b)x+3a-b能被(x-1)2整除，求a，b的值．82．已知多项式x3+ax2-(a+2)x+3a-6能被x2+2x+3整除，且商式为Ax+B，求A，B的值．83．如果多项式x2-2(m+1)x+m能被x+1整除，求m的值．84．已知被除式=-2y4-y3+5y2+5y+5，商式=y2-2，余式=3y+7，求除式．85．已知x2-3x-2=0，求-x3+11x+6的值．86．已知被除式=x4-2x3y-x2y+y2，除式=x2-2y，余式=-4xy2+3y2，求商式．87．已知多项式F被x2-2x-3除时余式为x+4，试求F被x+1除时的余式．88．已知被除式=x4-3x2+ax-1，除式=bx+1，商式=x3-x2-2x+4，余式=-5，求a，b的值．8