整式题目及答案100道题_整式计算题50道题及答案( 二 )


(14)(-4X的平方+6X)·(-1/2X的平方)
(15)(-2A)*A-(-2A)的平方
(16)(-2X的平方Y)·(-2/3XY)·(-8XY)
(17)已知xy的2次方=-2,求-xy(x的2次方-xy的3次方-y)的值
(18)(-4x^2+6x)×(-1/2x^2)
(19)已知长方体的长、宽、高分别为X,2X,3X,求该长方形的表面积与体积
(20)(2-4/x)`(-4X二:整式题带答案过程50道题如下 。

【整式题目及答案100道题_整式计算题50道题及答案】1.(4)2(a2b+ab2)-2(a2b-1)-2ab2-2,其中a=-2,b=2=2a2b+2ab2-2a2b+2-2ab2-2=03.3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4b-1)=______. 13.-6x2-7x2+15x2-2x2=______. (3)(5a2-3b2)+(a2+b2)-(5a2+3b2),其中a=-1,b=114.2x-(x+3y)-(-x-y)-(x-y)=______. 16.2x+2y-[3x-2(x-y)]=______. 17.5-(1-x)-1-(x-1)=______. 18.( )+(4xy+7x2-y2)=10x2-xy. 19.(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3. 21.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A+B=______. 22.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A-B=______. 23.若a=-0.2,b=0.5,代数式-(|a2b|-|ab2|)的值为______. 25.一个多项式减去3m4-m3-2m+5得-2m4-3m3-2m2-1,那么这个多项式等于______. 26.-(2x2-y2)-[2y2-(x2+2xy)]=______. 27.若-3a3b2与5ax-1by+2是同类项,则x=______,y=______. 28.(-y+6+3y4-y3)-(2y2-3y3+y4-7)=______. 29.化简代数式4x2-[7x2-5x-3(1-2x+x2)]的结果是______. 30.2a-b2+c-d3=2a+( )-d3=2a-d3-( )=c-( ). 31.3a-(2a-3b)+3(a-2b)-b=______. 32.化简代数式x-[y-2x-(x+y)]等于______. 33.[5a2+( )a-7]+[( )a2-4a+( )]=a2+2a+1. 34.3x-[y-(2x+y)]=______. 35.化简|1-x+y|-|x-y|(其中x<0,y>0)等于______. 36.已知x≤y,x+y-|x-y|=______. 37.已知x<0,y<0,化简|x+y|-|5-x-y|=______. 38.4a2n-an-(3an-2a2n)=______. 39.若一个多项式加上-3x2y+2x2-3xy-4得 2x2y+3xy2-x2+2xy,则这个多项式为______. 40.-5xm-xm-(-7xm)+(-3xm)=______. 41.当a=-1,b=-2时,[a-(b-c)]-[-b-(-c-a)]=______. 43.当a=-1,b=1,c=-1时,-[b-2(-5a)]-(-3b+5c)=______. 44.-2(3x+z)-(-6x)+(-5y+3z)=______. 45.-5an-an+1-(-7an+1)+(-3an)=______. 46.3a-(2a-4b-6c)+3(-2c+2b)=______. 48.9a2+[7a2-2a-(-a2+3a)]=______. (1)9x+6x2-3(x-2/3x-22),其中X=-2 50.当2y-x=5时,5(x-2y)2-3(-x+2y)-100=______.(2)1/4(-4x2-2x-8)-(1/2x-1),其中X=1/2(4)2(a2b+ab2)-2(a2b-1)-2ab2-2,其中a=-2,b=2
三:整式50道及答案七年级数学《整式加减》计算过关专练(含答案详解),提分必刷!

整式题目及答案100道题_整式计算题50道题及答案

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