整式的乘法和因式分解纯计算题100道_精品文档Word文档下载推荐.doc
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单项式乘多项式
(1)(2xy2-3xy)·
2xy;
(2)-x(2x+3x2-2);
(3)-2ab(ab-3ab2-1);
(4)(an+1-)·
ab.(5)-10mn·
(2m2n-3mn2).(6)(-4ax)2·
(5a2-3ax2).
(7)(3x2y-2xy2)·
(-3x3y2)2.(8)7a(2ab2-3b).(9)x(x2-1)+2x2(x+1)-3x(2x-5).
8.(﹣a2b)(b2﹣a+)(9).(﹣2a2b)3(3b2﹣4a+6)
10.2ab(5ab+3a2b)11..
12.计算:
2x(x2﹣x+3)13.(﹣4a3+12a2b﹣7a3b3)(﹣4a2)
14.计算:
xy2(3x2y﹣xy2+y)15.(﹣2ab)(3a2﹣2ab﹣4b2)
1.2.
4.
6.
7.8.
(1)(-a)8÷
(-a5);
(2)(x-y)7÷
(y-x)6;
(3)(-m4)3÷
(-m)7;
(4)x7÷
(x5÷
x3).
21.计算:
(1)(-a2b4)÷
(-ab2)÷
(-10ab);
(2)-32a4b5c÷
(-2ab)3·
(-ac);
(3)(n3-7mn2+n5)÷
n2;
(4)(12x4y6-8x2y4-16x3y5)÷
4x2y3.
多项式与多项式相乘
一、计算
1、(x+2)(x+6)2、(x+5)(x+6)3、(x+5)(x-7)4、(x+2)(x-3)
5、(-x-2)(x-6)6、(-x-5y)(x-7y);
7、(x-3y)(x+7y)
8、(2x-y)(3x+2y);
9、(3x-1)(2x+1)10、(2x-3)(3x-4);
11、(3x+2y)(3x-4y)12、(-8x+5)(5x-4),;
13、(-4x-y)(-5x+2y)14、(-2a-3b)(4a-2b)15、(2x-3y)(4x2+6xy+9y2);
16、(a2+2)(a4-2a2+4)17、(3x2+2x+1)(2x2+3x-1)
18、(y-1)(y-2)(y-3)
19、(a-4)(a+3)-(2a+1)(a-3)20、(x+2)(x-3)-x(x-2)
21.(x-3)(x2一6x+1)-x(x2一x-3)22.(a-2b)2+(a-b)(a+b)-2(a-3b)(a-b),
(1)(2x+3y)(3x-2y)
(2)(3x-1)(4x+5)
(3)(x+3)(x+4)-(x-1)(x-2)(4)(3x+2y)(2x+3y)-(x-3y)(3x+4y)
(5)(x+2)(x+3)-(x+6)(x-1)
(1)(m+1)(2m-1);
(2)(2a-3b)(3a+2b);
(3)(2x-3y)(4x2+6xy+9y2);
(1)(-ab)(ab2-2ab+b+1);
(2)3ab(a2b-ab2-ab)-ab2(2a2-3ab+2a).(4)(2x-y)(x+y);
(5)a(a-3)+(2-a)(2+a).
三、因式分解
8、
(1)
(2)
(3)(4)
(5)3x3+6x4;
(6)4a3b2-10ab3c;
(7)-3ma3+6ma2-12ma;
(8)6p(p+q)-4q(p+q).
(9)x4+x3+x;
(10)x(x-y)+y(y-x);
(11)6x(a-b)+4y(b-a);
(12)(a2-ab)+c(a-b);
(13)4q(1-p)3+2(p-1)2.
(1)
(2)
(3)(4)
(5)4x2-y2;
(6)-16+a2b2;
(7)100x2-9y2;
(8)(x+2y)2-(x-y)2;
(9)16-b4.(10)a3-9a;
(11)3m(2x-y)2-3mn2;
(12)(a-b)b2-4(a-b).
(1)
(2)
(3)(4)
(5)3p2﹣6pq;
(6)2x2+8x+8
(7)2am2﹣8a;
(8)4x3+4x2y+xy2
(1)
(2)
(3)(4)
(5)(6)
32.-24x3-12x2+28x33.6(m-n)3-12(n-m)234.3(a-b)2+6(b-a)
35.18(a+b)3-12b(b-a)236.(2a+b)(2a-3b)-3a(2a+b)37.(x2+6x)2-(2x-4)2
38.9(m+n)2-(m-n)239.(2x+3y)2-140.9(a-b)2-16(a+b)2
41.(x+y)2-16(x-y)242.-16x4+81y443.3ax2-3ay2
44.2x3-8x45.7x2-6346.(a2+b2)2-4a2b2
47.(m+n)2-6(m+n)+948.(3)(a-b)2-2(a-b)+1;
49.4xy2-4x2y-y3
50.-x2-4y2+4xy51.;
52.;
53.(a2+4)2-16a254.-4x3+16x2-26x
56.a2(x-2a)2-a(2a-x)3
57.56x3yz+14x2y2z-21xy2z258.mn(m-n)-m(n-m)59.-(2a-b)2+4(a-b)2
60.4xy–(x2-4y2)61.-3ma3+6ma2-12ma62.a2(x-y)+b2(y-x)
63.64.65.–2x2n-4xn
66.67.68.;
69.ax2y2+2axy+2a70.(x2-6x)2+18(x2-6x)+8171.
72.9x2-y2-4y-473.74.
75.76.77.
78.79.