文档介绍：《整式的加减》专项练****题(有答案)整式的加减专项练****100题1、3(a+5b)-2(b-a)2、3a-(2b-a)+b3、2(2a2+9b)+3(-5a2-4b)(x3-2y3-3x2y)-(3x3-3y3-7x2y)5、3x2-[7x-(4x-3)-2x2](2xy-y)-(-y+yx)7、5(a2b-3ab2)-2(a2b-7ab)(-2ab+3a)-2(2a-b)+2ab9、(7m2n-5mn)-(4m2n-5mn)10、(5a2+2a-1)-4(3-8a+2a2).-3x2y+3xy2+2x2y-2xy2;2(a-1)-(2a-3)+、-2(ab-3a2)-[2b2-(5ab+a2)+2ab]14、(x2-xy+y)-3(x2+xy-2y)15、3x2-[7x-(4x-3)-2x2]a2b-[2(a2b-2a2c)-(2bc+a2c)];17、-2y3+(3xy2-x2y)-2(xy2-y3).18、2(2x-3y)-(3x+2y+1)19、-(3a2-4ab)+[a2-2(2a+2ab)].20、5m-7n-8p+5n-9m-p;(5x2y-7xy2)-(xy2-3x2y);22、3(-3a2-2a)-[a2-2(5a-4a2+1)-3a].23、3a2-9a+5-(-7a2+10a-5);24、-3a2b-(2ab2-a2b)-(2a2b+4ab2).(5a-3a2+1)-(4a3-3a2);26、-2(ab-3a2)-[2b2-(5ab+a2)+2ab]27、(8xy-x2+y2)+(-y2+x2-8xy);28、(2x2-+3x)-4(x-x2+);29、3x2-[7x-(4x-3)-2x2].30、5a+(4b-3a)-(-3a+b);31、(3a2-3ab+2b2)+(a2+2ab-2b2);32、2a2b+2ab2-[2(a2b-1)+2ab2+2].33、(2a2-1+2a)-3(a-1+a2);34、2(x2-xy)-3(2x2-3xy)-2[x2-(2x2-xy+y2)].-ab+a2b+ab+(-a2b)-136、(8xy-x2+y2)+(-y2+x2-8xy);37、2x-(3x-2y+3)-(5y-2);38、-(3a+2b)+(4a-3b+1)-(2a-b-3)39、4x3-(-6x3)+(-9x3)40、3-2xy+2yx2+6xy-4x2y41、1-3(2ab+a)十[1-2(2a-3ab)].42、3x-[5x+(3x-2)];43、(3a2b-ab2)-(ab2+3a2b)44、45、(-x2+5+4x3)+(-x3+5x-4)46、(5a2-2a+3)-(1-2a+a2)+3(-1+3a-a2).47、5(3a2b-ab2)-4(-ab2+3a2b).48、4a2+2(3ab-2a2)-(7ab-1).49、xy+(-xy)-2xy2-(-3y2x)50、5a2-[a2-(5a2-2a)-2(a2-3a)]51、5m-7n-8p+5n-9m+8p52、(5x2y-7xy2)-(xy2-3x2y)53、3x2y-[2x2y-3(2xy-x2y)-xy]54、3x2-[5x-4(x2-1)]+5x255、2a3b-a3b-a2b+a2b-ab2;(a2+4ab-4b2)-3(a2+b2)-7(b2-ab).57、a2+2a3+(-2a3)+(-3a3)+3a2;58、5ab+(-4a2b2)+8ab2-(-3ab)+(-a2b)+4a2b2;59、(7y-3z)-(8y-5z);60、-3(2x2-xy)+4(x2+xy-6).61、(x3+3x2y-5xy2+9y3)+(-2y3(-2y3+2xy2+x2y-2x3)-(4x2y-x3-3xy2+7y3)-3x2y+2x2y+3xy2-2xy2;63、3(a2-2ab)-2(-3ab+b2);64、5abc-{2a2b-[3abc-(4a2b-ab2]}.65、5m2-[m2+(5m2-2m)-2(m2-3m)].-[2m-3(m-n+1)-2]-、a-(a-4b-6c)+3(-2c+2b)-5an-an-(-7an)+(-3an)69、x2y-3xy2+2yx2-y2xa2b--a2b+ab2;71、3a-{2c-[6a-(c-b)+c+(a+8b-6)]}72、-3(xy-2x2)-[y2-(5xy-4x2)+2xy];73、化简、求值x2--(-x2+y2),其中x=-2,y=-74、化简、求值x-2(x-y2)+(-x+y2),其中x=-2,y=-.75、化简、求值其中x=-1;化简,求值(4m+n)-[1-(m-4n)],m=n=-177、化简、求值2(a2b+2b3-ab3)+3a3-(2ba