初中数学八级上册整式乘除计算题专练.doc

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1、初中数学八年级上册整式乘除计算题专练一、填空题102105=_；a4a6=_；x2+x2=_x2x2=_(a2)4=_(x6)5=_(x4)4=_x(x2)3=_(xx2)3=_(x10)10=_(3a4b2)3=_9a12b6=_27a7b5=_9a12b6=_xx3x11=_；yy7y8=_；tt11=_；(s)2(s)5=_；(xy)2(xy)3=_；(a+b)2(a+b)6=_；a6a2=_；x6xx7=_；t2(t3)2=_；8x62(x2)3=_；(xx2x3)4=_；(y2)24=_；a8+(a2)4=_；(n2)3(n4)22=_；(ab)3=_；(2a+3)3=_；(3x4)

2、2=_；(3a2b)2=_；(4x+5y)2=_；(ab4c)2=_；(3a1)2=_；(2x+5y)2=_；(ab12)2=_；(a2+b2)=_；2a4b=_ (2x2)3=_；x2(xy)3=_；x3(xy)3=_；(1)x6y4+(x3y2)2=_；(6a2)3a=_；(7x5yz2)(4xz4)=_；(5a3y)(3ayc)=_；(a)25a3b=_；(2a)2(3a2)=_；(3x)(2xy6)=_；x(x2x)+2x2(x1)=_；(2a3)(2a2b4ab2)=_；(3x)2(x3x22)=_；(x1)(x+1)x2=_；(2xy)(2x+y)=_；(3x+5y)(3x2y)=

3、_；(x+11)(x20)=_；(x5)(2x+3)=_；(a1)(a+1)=_；(m2)(m+2)=_；(2n3)(2n+3)=_；(m30)(m+30)=_；(t)(t+)=_；(2x9)(2x+9)=_；(xy)(x+y)=_；(x)2x3=_99101=( + )( ) =( )2( )2=_；20031997=( + )( ) =( )2( )2=_；(abc)(a+bc)=_；198202=_；（2x3t）(2x+3t)=_；(3x7)(3x+7)=_；(2m+n)(n+2m)=_；(5p3)(5p3)=_；(x2y)(x2+y)=_；(y+12)2=_；axay=_；y23y=_

4、；5y2+10y=_；36x212x+1=(_)2；x2+22x+121=(_)2x210x+25x=x(_)2.27a12b6=_x3x3=_二计算题；，则。3a26ab+3ab2；2x2y3b2 (y)2(y)5=x(x1)=(x)(2x)=(x)2(x3)=x3+3x2a3(a)42m2n2n2m3x2+5x3m(m2n2)=a(a21)=x2+x2=x(x3)=x2x(x1)=x，(x+y)(x+y)=(x+1)(x1)=(x+2)(x3)=(x1)(x+6)=(a+b)(ba)=x+y)(xy)=2x4y=x2x+1=(ab)(a+b)=(ba)(b+a)(3ab)2（2ab2）；x

5、(xy)+x(yx)；(x+2)(x+3)；(x2)(x+3)；(x+2)(x3)；(x2)(x3)；(3a4b)(2a5b)(x+2y)(x2y)(5x4y)(2x3y)(3x+4y)(3x4y)(2a3b)(3a+2b)(2m+5m)(6n3m)(3xy)(3xy) (2x3y)(2x+3y)=(mn)(mn)=(a+b)(a2b)= x10+x10 (xy2)3(x3)2 (3x2y)2=9x4y2(x32y)(x3+2y)=x94y2(42x)(4+2x)=164x2(a2+b2)(a2b2)=a4b4(6xy)(6x+y)(2x+y)(2xy)(x5)(x+5)；(3y10)(3y+

6、10)；（5b）(+5b)；(xy3)(xy(x5)(x+5)；(3y10)(3y+10)；（5b）(+5b)；(xy3)(xy+3)；(abc)(a+bc)；(a+2b)(2ba)；(3xy)(y+3x)；4x2(2x9)(2x+9)；（7m+1）(7m1)；(x5)(x+5)；(x22)(x2+2)；(ab3)(ab+3)；(4y3x)(3x+4y)；(x+1)(x1)x2；(3y1)(3y+1)(2y+2)(2y2)；(ab)(a+b)；（3m2+1）(3m21)；(2x11y)(2x11y)；(4+2x)(2x)(a2+b2)；(5x2y)2+20xy.jm(a2b)(a+2b)(a2b)2；2x2y3y2；a(x+y)2(x+y)；(x+y)23(y+x)；x(xy)a(yx)；(a+b)a(a+b)；x(ab)5(ab)；(xy)2(xy)；3(2x+y)2+2(2x+y)；18x2y24xy2；3a3b2+12b3a2；n23n(x5)(x+5)；(3y10)(3y+10)；（5b）(+5b)；(xy3)(xy+3)；16m2+2540m；2x2y3y2(2xy)22(2xy)+1；（2m3n）(2n5m)；