643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx

上传人:b****0 文档编号:13213687 上传时间:2022-10-08 格式:DOCX 页数:14 大小:40.60KB
下载 相关 举报
643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx_第1页
第1页 / 共14页
643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx_第2页
第2页 / 共14页
643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx_第3页
第3页 / 共14页
643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx_第4页
第4页 / 共14页
643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx_第5页
第5页 / 共14页
点击查看更多>>
下载资源
资源描述

643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx

《643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx》由会员分享,可在线阅读,更多相关《643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx(14页珍藏版)》请在冰豆网上搜索。

643整式的混合运算专项练习99题有答案有过程okWord格式文档下载.docx

(20);

(21)x(x+1)﹣(2x+1)(2x﹣3);

(22)(2a+3b)2﹣(2a﹣3b)2.

(23)2a2﹣a8÷

a6;

(24)(2﹣x)(2+x)+(x+4)(x﹣1)

(25)(﹣2ab3)2+ab4•(﹣3ab2);

(26)(2a+3)(2a﹣3)+(a﹣3)2.

(27)12ab2(abc)4÷

(﹣3a2b3c)÷

[2(abc)3].

(28)(﹣2x2)3÷

(﹣x)2

(29)(﹣2m﹣1)(3m﹣2)

(30)2x•(﹣x2+3x)﹣3x2•(x+1).

(31)3a•(﹣ab2)﹣(﹣3ab)2.

(32)﹣3x•(2x2﹣x+4)

(33)2x3•(﹣2xy)(﹣xy)3.

(34)3(x2﹣2x+3)﹣3x(x+1)=0.

(35)(3x+2)(3x+1)﹣(3x+1)2.

(36)2a(a+b)﹣(a+b)2.

(37)x(2x﹣7)+(3﹣2x)2.

(38)(﹣3x2y)2÷

(﹣3x3y2)

(39)(a+2)2﹣(a+1)(a﹣1)

(40)(a2)4÷

a2

(41).

(42)a(ab2﹣4b)+4a3b÷

a2;

(43)(x﹣8y)(x﹣y).

(44)(3x2y)3•(﹣5y);

(45)[(x+y)2﹣y(2x+y)﹣4x]÷

2x.

(46)(2x+a)2﹣(2x﹣a)2

(47)[(2x2)3﹣6x3(x3+2x2)]÷

(﹣2x2)

(48)(x﹣2)(x+2)﹣(x+1)(x﹣3)

(49)(2a)3•b4÷

12a3b2

(50)(3x﹣1)(2x+3)﹣6x2.

(51)(﹣6x2)2+(﹣3x2)•x﹣27x5÷

(﹣9x2)

(52)(﹣2y2)3+y•y5

(53)(x+2)2﹣(x+1)(x﹣1)

(54)(a+b)(a﹣b)+(a+b)2﹣a(2a+b)

(55)(﹣a)2•(a2)2÷

a3

(56)(15x2y﹣10xy2)÷

5xy.

(57)[(2x2)3﹣6x3(x3+2x2+x)]÷

(﹣x)4.

(58)(x+1)2+2(1﹣x)﹣x2

(59)(12a3﹣6a2+3a)÷

3a

(60)5x2(x+1)(x﹣1)

(61)(b﹣2a)2﹣4a(a﹣b)

(62)(﹣3ab2)3(﹣4ab2)

(63)(3a﹣2)(a﹣6)

(64)(3a3b﹣9a2b2﹣21a2b3)÷

(﹣3a2b)

(65)(x+3)(x﹣2)﹣(x﹣2)2

(66)(3x+4y)(3x﹣4y)

(67)(x+3y)(2x﹣y)﹣y(5x+3y)

(68)3(a5)2•(﹣a3)2﹣(2a3)2•(a2)5;

(69)4xy+(x﹣2y)2+(x+3y)(3y﹣x)

(70)﹣3x2y2•(﹣2xy)2.

(71)(a﹣2b)2+(a+2b)(a﹣2b)

(72).

(73).

(74)(﹣2xy2)3+(﹣3xy4)(﹣2x2y2)

(75)(2x)3×

(﹣3xy2)

(76)(a+3b)(a﹣2b)﹣(2a﹣b)2.

(77)(﹣2x2y)3+(3x2)2•(﹣x2)•y3.

(78)(m2n)3•(﹣m4n)÷

(﹣mn)2

(79)(2a﹣1)2(2a+1)2

(80)(x4y+6x3y2﹣x2y3)÷

(3x2y)

(81)(2x﹣3y+1)(2x+3y﹣1)

(82)(﹣2x)(4x2﹣2x+1)

(83)(6a3﹣4a2+2a)÷

2a

(84)(2x﹣y)(2x+y)﹣(x﹣3y)2

(85)(4x2﹣2x3+6x)÷

(﹣2x)﹣(2x﹣1)2.

(86).

(87)[x(xy2+2xy)﹣y(x2y﹣6x2y2)]÷

2x2y.

(88)x6÷

(﹣x)2﹣(x)2•27x2.

(89)(2x+y)(2x﹣3y)+4y(2x+y)

(90)(m+2)(m﹣2)+(m﹣1)(m+5)

(91)[(x+y)2﹣y(2x+y)﹣8x]÷

(92)(2xy2﹣6xy)÷

2x+y(y+2)

(93)(27a3﹣15a2+6a)÷

(3a)

(94)x(x+2y)﹣(x+1)2+2x.

(95)(x2y3)2÷

(x3y4)•(﹣4xy)

(96)a3•a3+(﹣2a3)2﹣(﹣a2)3.

(97)(2x+1)(x+3)﹣6(x2+x﹣1);

(98)[x(x2y2﹣xy)﹣y(x2﹣x3y)]+3x2y.

(99)[(2x+y)2﹣y(y+2x)﹣4x]÷

 

整式混合运算99题参考答案:

=﹣4x4y6•x3y3

=﹣4x7y9;

(2)5x2(x+1)(x﹣1),

=5x2(x2﹣1),

=5x4﹣5x2.

(3)x(y﹣x)+(x+y)(x﹣y),

=xy﹣x2+x2﹣y2,

=xy﹣y2;

(﹣ab),

=a2+4ab+4b2﹣4b2,

=a2+4ab 

(5)3(a2)3•(a3)2﹣(﹣a)2(a5)2,

=3a6•a6﹣a2•a10,

=3a12﹣a12,

=2a12.

(6)(5mn﹣2m+3n)+(﹣7m﹣7mn),

=5mn﹣2m+3n﹣7m﹣7mn,

=(5﹣7)mn+(﹣2+7)m+3n,

=3n﹣9m﹣2mn;

(7)(x+2)2﹣(x+1)(x﹣1),

=x2+4x+4﹣x2+x﹣x+1,

=4x+5. 

(8)(x+2)2﹣(2x)2,

=x2+4x+4﹣4x2,

=﹣3x2+4x+4;

(9)(2a+3b)2﹣4a(a+3b+1),

=4a2+12ab+9b2﹣4a2﹣12ab﹣4a,

=9b2﹣4a. 

(﹣x3y4),

=4x2y4•3x2y÷

=12x4y5÷

=﹣12xy 

(11)(x+1)2+2(1﹣x),

=(x+1)2+2(1﹣x),

=x2+2x+1+2﹣2x,

=x2+3.

(12)(﹣a3)2•(﹣a2)3,

=a6•(﹣a6),

=﹣a12;

(13)[(﹣a)(﹣b)2•a2b3c]2,

=(﹣a3b5c)2,

=a6b10c2;

(14),

=(9×

×

)3,

=23,

=8;

(15)(x3)2÷

(﹣x)2•(﹣x2),

=x6÷

x2•(﹣x2),

=x3﹣x3,

=0. 

(16)原式=﹣27x6•(16y6)÷

(216x6y3)=﹣2y3;

(17)原式=(﹣x﹣y)2﹣(2y﹣x)(x+2y),

=x2+2xy+y2﹣(4y2﹣x2),

=x2+2xy+y2﹣4y2+x2,

=2xy﹣3y2 

=[3x2y÷

(﹣xy)]+[﹣xy2÷

(﹣xy)]+[xy÷

(﹣xy)],

=﹣6x+2y﹣1;

(19)(a+b)(﹣b+a)+(a+b)2﹣2a(a+b),

=(a+b)(a﹣b+a+b﹣2a),

=0 

(20)原式=[2x(3x6y6)•y2]÷

9x7y8,

=(6x7y6•y2)÷

=2x7y8÷

=;

(21)原式=x2+x﹣(4x2﹣6x+2x﹣3),

=x2+x﹣4x2+6x﹣2x+3,

=﹣3x2+5x+3;

(22)原式=(2a+3b+2a﹣3b)(2a+3b﹣2a+3b),

=4a•9b,

=36ab

a6,

=2a2﹣a2,

=a2;

(24)(2﹣x)(2+x)+(x+4)(x﹣1),

=4﹣x2+x2+3x﹣4,

=3x. 

(25)(﹣2ab3)2+ab4•(﹣3ab2),

=4a2b6﹣3a2b6,

=a2b6;

(26)(2a+3)(2a﹣3)+(a﹣3)2,

=4a2﹣9+a2﹣6a+9,

=5a2﹣6a

(27)原式=12a5b6c4÷

2a3b3c3

=﹣4a3b3c3÷

2a3b3c3=﹣2 

(28)原式=﹣8x6÷

x2=﹣8x4;

(29)原式=﹣6m2+4m﹣3m+2=﹣6m2+m+2

(30)原式=﹣2x3+6x2﹣3x3﹣3x2

=﹣5x3+3x2. 

(31)3a•(﹣ab2)﹣(﹣3ab)2﹣12a2b2,

=﹣3a2b2﹣9a2b2﹣12a2b2,

=﹣24a2b2 

(32)原式=﹣6x3+3x2﹣12x;

(33)原式=2x3•(﹣2xy)(﹣x3y3)

=x7y4 

(34)3(x2﹣2x+3)﹣3x(x+1)=0,

∴3x2﹣6x+9﹣3x2﹣3x=0,

∴﹣9x=﹣9,

∴x=1 

(35)原式=9x2+3x+6x+2﹣9x2﹣6x﹣1

=3x﹣1. 

=(a+b)(2a﹣a﹣b)

=(a+b)(a﹣b) 

(37).原式=2x2﹣7x+9﹣12x+4x2

=6x2﹣19x+9. 

(﹣3x3y2),

=9x4y2÷

=﹣3x;

(39)(a+2)2﹣(a+1)(a﹣1),

=a2+4a+4﹣(a2﹣1),

=a2+4a+4﹣a2+1,

=4a+5 

(40)原式=a8÷

a2=a6;

(41)原式=a2b﹣6ab2+6ab2

=a2b. 

(42)原式=a2b2﹣4ab+4ab=a2b2;

(43)原式=x2﹣xy﹣8xy+8y2=x2﹣9xy+8y2 

(44)原式=27x6y3•(﹣5y)=﹣135x6y4;

(45)原式=(x2+y2+2xy﹣2xy﹣y2﹣4x)÷

2x

=(x2﹣4x)÷

=x﹣2 

 (46)原式=[(2x+a)+(2x﹣a)][(2x+a)﹣(2x﹣a)]

=(2x+a+2x﹣a)(2x+a﹣2x+a)

=4x•2a

=8ax;

(47)原式=(8x6﹣6x6﹣12x5)÷

=2(x6﹣6x5)÷

=﹣x4+6x3

=6x3﹣x4;

(48)原式=x2﹣4﹣(x2﹣2x﹣3)

=x2﹣4﹣x2+2x+3

=2x﹣1

(49)原式=8a3•b4÷

12a3b2,

=b2.

(50)原式=(6x2+9x﹣2x﹣3)﹣6x2

=6x2+9x﹣2x﹣3﹣6x2

=7x﹣3

=36x4﹣3x3+3x3=36x4

=﹣8y6+y6

=﹣7y6;

(53)(x+2)

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 人文社科 > 教育学心理学

copyright@ 2008-2022 冰豆网网站版权所有

经营许可证编号:鄂ICP备2022015515号-1