整式的加减100道

1、(2x2 3xy + 4y2)- 2(/ + 2xy 3y2)；(7)(x2 2y2 z2) 3( y2 + 3x2 z2) + (5X2 + 2z2)2x+ 2y 3x 2(x y);(8)2(2xy + y2 3) + ( x2+ y2)(x2+ 2xy + 2 y2)(12)2x2 3x 4x2 (3x2 x) + (x x2);(9)2(3x + z) ( 6x 4z) + 2( 5y + 3z);2(a2 ab b2) 3(4a 2b) + 2(7 a2 4ab + b2)(4)(10)4x 2(x 3) 3x 3(4 2x)+ 8;9a2 7 a2 2a ( a2 + 3a + 5

2、);(11)(7x y 2z) 4x (x y z) 3x+ z x;(-X3- x2y + 0.5xy2) 2 ( 0.5x3 x2y);3(13)3x- 2(2x- 4y-6x) + 3(- 2z+ 2y);(19)(-y + 6 + 3y4-y3) - 3(2y2 3y3 + y4- 7)(14)(3a2 4ab 5b2) 2(2 b2 5a2- 3) ( 6ab + 2)(20)-(2x2- y2) - 32 y2 - (x2+ 2xy)(15)(5a2b + 3a2b2-ab2)- 5(- 2ab2 + 3a2b2 + a2b)(21)2x - (x + 3y)- 5( - x-y)

3、- 2(x - y)(16)-2 a2b - 3abc- (4ab2- a2®(22)(13x 11y + 10z)- 15x-(15z- 10y)(17)9a2 + 7a2 2a- (-a2 + 3a)(23)3x2y- 5xy2- 2(2x3- 7x2y + 6) - (4x3- xy2+ 10)x-2y- 7(2x+ y)33(18)3a (2 a 3 b) + 3(a 2b) b(24)(25)a (b c) 2 b ( c a)(31)a3 (a2 a) + 2(a2 a + 1) 3(1 a4+ a3)(30)4(x y+ z) 2(x + y z) 3( x y z)(

4、36)(2x2y + 3xy2 + 2xy) 3 (3x2y + 2x2) 3xy 4(26)(32)(4x2 8x+ 5) 3(x3 + 3x2 6x+ 2)xy - (2xy 3z) + - (3xy 4z)4-(27)(3a6 a4+ 2a5 4a3 1) 2(2 a + a3 a5 a4)(33)2.(2 m3n)(3m 2n) + (5n+ m)32(28)(34)2( 3x3+ 2x2 5x + 1) 3(5 6x x2+ x3)(5a2 2ab + 3b2) 3 2b2+ ( ab a2)(29)2m 3n + 4m (3m n)(35)2b 2( 5a + 3c) ( 3b +

5、 5c)(37)4x2 7x2 5x 3(1 2x+ x2)(43)a 2(a + b) + 3(a 4b);(38)(x3 2x2 + x 4) 3( 2x3 5x + 3)(44)2x (5 a 7x 2a);(39)(3m4 m3 2m+ 5) ( 2m4 3m3 2m2 1)(45)2(x 3) ( x+ 4);(40)2 1 2 2 17xy (5x y 5xy x)(y 3x)32(46)(8x2y xy2) 4(x2y -1 xy2)；4(41)3 + (2x y) (y x);(47)4x2 6x (2x 3) + 2x2；(42)x+ 2(3 x) 3(4x 1);(48)5

6、a2 a2 ( 7a2) + ( 3a2);(49)6a2b + 5ab2 4ab2 7a2b ；(55)3x24 5x3x33 3x2(50)3x2y+ 2x2y + 3xy2 2xy2；(56)(3x2 xy 2y2)2(x2 + xy 2 y2)；(51)226223m n mn-mn n m 0.8mn 3n m ；5(57)2 2(2x x) 4x(32 x)；(52)2(a2 3a) + (5a2 2a);(58)(8xy x2+ y2)+( y2+ x2 8xy);(53)2x (x+ 3y) ( x y) (x y);(59)2ab + - a2b + ab + ( - a2b

7、) 1;344(54)(2x45x24x + 1) (3<35x23x);(60)3 2xy + 2yx2 + 6xy 4x2y；(61)11(2x2 + 3x) 4(x x2+ )；22(67)(5x2y 7xy2) ( xy2 3x2y)；(62)1 23y2)；1x 2(x丄丫升(3x+ 12323(68)3a2- 9a + 5( 7a2+ 10a 5);(63)1 3-x3丄乂2(4x6)25x(69)3a2b ( 2ab2 a2b) ( 2a2b + 4ab2)；(64)(X2 xy+ y) 3 (x2+ xy 2y);(70)2 ( ab 3a2) 2b2( 5ab + a2

8、)+ 2ab;(65)5 (a2b 3ab2) 2 (a2b 7ab);(71)(a2+ 4ab 4b2) 3 (a2+ b2) 7 (b2 ab);(66)3a2 9a + 5( 7a2 + 10a 5);(72)3 ( 2x2 xy) + 4( X2+ xy 6);(73)3x2y+ 2x2y + 3xy2 2xy2;(79)(5ab + 4a +7b) + ( 6a 3ab) ( 4ab 3b);(74)2m 3 ( m n+ 1) 2 1;(80)5ab2 2a2b (4ab2 2a2b)；(75)x2y 3xy2 + 2yx2 y2x；(81)7 3x 4x2 + 4x 8x2 15

9、;(76)(2x3 xyz) 2 (x3 y3+ xyz) + ( xyz 2y3) ;(82)2(2a2 9b) 3( 4 a2 + b);(77)5x2 3x 2 (2x 3)+ 7x2；(83)8x2 3x (2x2 7x 5) + 3 + 4x;(78)2 (x2y+ xyz) 3 (x2y xyz) 4x2y;(84)(5x 3y 2xy) (6x + 5y 2xy);(85)3a2b- 2ab2 2 (ab 1.5a2b)+ ab + 3ab2；(91)5(ab) 4(3a 2b)3(2a3b);(86)c 4,3222x 4x y x yc 4 c 332 x 2x y y(92)3a22(5a abb2) (7ab 7b2 3a2)；(87)2a (a b) 2(ab)；(93)(Xy)2(xy)4(xy)；(88)(5x y) 3(2x3y);(94)3a2bab24-ab24a2b ；(89)(3xy x) 2(2x 3yz)；(95)7 P3(90)2 2 2 23x y 2x y