人教版初中八年级数学上册整式的乘法和因式分解练习题50Word格式文档下载.docx
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4.81042
(3a)2•b4÷
8a2b2(5x3y4-x2y3z2)÷
xy2
2(x+3)2+(2x-5)(2x-3)3(y-z)2-(3y-z)(4y+z)
36x2-9y2(a+m)(5x+y)+(a+m)(x-2y)
a2+16ay+64y236+48(c+m)+16(c+m)2
d3-49dx4-256
70a-80a2b8abc+100b
8q(4-a)+36p(4-a)6(4-a)+m(4-a)
81-81b232x2-18y2
0.36a2-1(x-2y)2-(9x-10y)2
64-64a+16a2(x+y)2-8m(x+y)+16m2
64b2-16b+136a2+12a(a+b)+(a+b)2
x2-12x+32x2-5x-14
5x2+20x+2025-9x2
(2xy3)2•(-x2y3)3(6a-b)(a+2b)
-2x(x-5)(x+5)(3x+y-2)2
7.1×
6.92032
(8a)2•b3•10a2b2(7x3y2+6x4y3z2)÷
xy
2(x+3)2-(2x+5)(2x-3)3(y-z)2-(4y-z)(2y+z)
x2-49y2(m-c)(x-6y)-(m-c)(4x-y)
a2-18an+81n236+72(m+b)+36(m+b)2
b3-36bx4-16
40a2+80a18abc+40b
6p(y-3)-28q(y-3)6(y-3)-m(y-3)
25-9x28x2-8y2
64b2-9(x-y)2-(8x+8y)2
16-16a+4a2(a-b)2-8m(a-b)+16m2
9m2-12m+416a2+8a(m+n)+(m+n)2
x2-14x+49x2+1x-30
12x2+37x+2881-25n2
(3x3y)2•(-x3y)3(2a+b)(a+4b)
3x(x+2)(x+3)(2x-2y-2)2
50.3×
49.740022
(3a)3•b4÷
6a2b2(2x4y3+3x4y2z4)÷
9xy
(x+1)2-(3x+4)(4x+3)(y-z)2-(4y-z)(3y-z)
49x2-y2(n-b)(3x-6y)-(n-b)(x-y)
a2-8an+16n236-24(b-n)+4(b-n)2
c3-64c81x4-1
90a+50a14ab2c+80b4
20q(5-b)-12q(5-b)2(5-b)+m(5-b)
1-64m216x2-16y2
0.16m2-16(x-y)2-(2x+7y)2
100-180b+81b2(x+y)2+6m(x+y)+9m2
81y2+162y+814a2-4a(m-n)+(m-n)2
x2+8x+7x2-5x-14
5x2+10x+564-16n2
(-3x2y)3•(-x3y3)3(3a+5b)(4a+6b)
3x(x+4)(x-2)(2x+4y-4)2
6.4×
5.64992
(6a)2•b4÷
10ab(7x2y2+7x2y2z4)•7xy
(x-3)2-(2x+3)(3x+5)2(y+z)2-(2y-z)(3y-z)
x2-y2(b+p)(x+y)+(b+p)(x-y)
a2+10ab+25b24+24(m+b)+36(m+b)2
c3-36cx4-1
40a-20ab2abc+20b
14p(y+3)+12q(y+3)6(y+3)+m(y+3)
9-49n248x2-3y2
0.25m2-9(3x-2y)2-(6x+y)2
81+36x+4x2(a+b)2+12m(a+b)+36m2
25x2-80x+6425a2-10a(a+b)+(a+b)2
x2+5x+6x2+5x-14
3x2-19x+625-36a2
(-3x3y3)2•(x2y)2(a-3b)(a+6b)
-2x(x-4)(x+2)(6x-y-4)2
4.3×
3.750012
(3a)3•b4•16ab2(4x3y4+5x4y3z3)÷
(x+2)2+(3x-5)(3x+2)(y-z)2+(3y-z)(3y-z)
81x2-y2(a-p)(x+y)+(a-p)(x+y)
a2-10am+25m24-20(n+c)+25(n+c)2
d3-25d16x4-1
45a+60a418ab2c-20b4
2p(3-a)-20q(3-a)2(3-a)-m(3-a)
64-25b227x2-3y2
0.25b2-36(8x-y)2-(x-8y)2
4-32m+64m2(x+y)2+4m(x+y)+4m2
100m2-120m+3625a2-10a(m+n)+(m+n)2
x2-16x+64x2+5x-6
4x2-11x+681-64x2
(-2xy)2•(-x2y)3(4a-6b)(2a-b)
3x(x-4)(x-2)(x+4y+2)2
10.3×
9.76972
(7a)3•b2÷
20ab(x2y4+6x2y2z2)•xy2
(x+3)2+(3x-2)(3x-2)(y-z)2+(2y-z)(2y+z)
49x2-y2(c-p)(x-y)-(c-p)(4x-y)
a2+18ax+81x216+40(c+n)+25(c+n)2
40a-100ab20abc+70b3
14p(4-a)-40p(4-a)6(4-a)-m(4-a)
100-64y24x2-36y2
0.64b2-36(5x+y)2-(x+y)2
25+100x+100x2(m-n)2+12m(m-n)+36m2
25a2+30a+916a2+8a(m-n)+(m-n)2
x2+11x+28x2-4x-21
15x2-46x+354-64m2
(-2x3y)3•(-xy3)3(5a+2b)(3a+3b)
2x(x+5)(x+2)(2x+y+2)2
90.2×
89.810042
(8a)3•b2÷
18a2b(x3y2+2x4y3z2)•x2y2
(x-1)2-(4x+5)(4x+3)4(y+z)2+(2y-z)(4y+z)
x2-y2(m-b)(x-y)-(m-b)(4x-y)
a2-20an+100n29+18(d-m)+9(d-m)2
b3-16bx4-1
25a4-90ab6a4bc+80bc
8p(x+6)+12p(x+6)6(x+6)+m(x+6)
16-49m250x2-50y2
49b2-36(x+y)2-(5x+y)2
9+54n+81n2(m+n)2-6m(m+n)+9m2
36y2+108y+8136a2-12a(a+b)+(a+b)2
x2-16x+63x2+5x-6
10x2+48x+5436-64b2
(3x3y3)2•(x2y2)3(a+b)(a+2b)
-2x(x-3)(x-5)(x-y+1)2
6.980002
(4a)2•b3÷
12ab(x2y2-6x2y4z4)•4x2y
3(x+2)2-(4x+4)(4x+1)(y-z)2-(3y+z)(4y+z)
x2-y2(b+p)(3x+y)+(b+p)(3x+6y)
a2+4am+4m236-36(m-c)+9(m-c)2
a3-25ax4-81
60a-50a2ab2c+50b3
12p(3-b)-16p(3-b)6(3-b)+m(3-b)
16-36y24x2-100y2
16y2-324(x+6y)2-(x+y)2
81+54y+9y2(m+n)2+10m(m+n)+25m2
36m2+60m+2525a2-10a(m+n)+(m+n)2
x2+9x+14x2-9x-10
4x2+22x+309-9n2
(2xy)2•(-xy3)2(a+b)(6a+2b)
-2x(x-3)(x+5)(2x+3y+2)2
2.2×
1.860052
(4a)3•b4÷
10ab(x3y3-7x2y4z2)•9x2y2
(x-4)2+(2x+5)(3x+5)(y-z)2+(3y-z)(3y+z)
4x2-y2(n-b)(x+4y)+(n-b)(x+3y)
a2-16an+64n225-20(q-d)+4(q-d)2
40a3+80a14abc+80b2c
12p(x+1)-28p(x+1)6(x+1)+m(x+1)
36-36a275x2-12y2
0.36b2-9(9x-y)2-(2x-9y)2
16-40x+25x2(x+y)2-8m(x+y)+16m2
4n2+24n+369a2-6a(x+y)+(x+y)2
x2+8x+15x2+6x-7
2x2+11x+1536-36a2
(2x2y)2•(xy2)2(3a+b)(a-4b)
3x(x-4)(x+5)(2x+6y+2)2
5.3×
4.76992
(6a)3•b3÷
20a2b(x3y4-x4y4z3)•7xy2
4(x+1)2-(2x+4)(2x-3)(y-z)2-(2y+z)(4y+z)
x2-49y2(a-m)(3x-6y)+(a-m)(x-y)
a2+16ax+64x225-30(b+m)+9(b+m)2
d3-100dx4-256
75a+100a34ab2c+100b4c
20p(y-9)-4q(y-9)2(y-9)+m(y-9)
49-49n264x2-36y2
9b2-196(x+y)2-(x-7y)2
64-80m+25m2(m-n)2+8m(m-n)+16m2
81m2+18m+136a2-12a(a+b)+(a+b)2
x2-11x+30x2-6x-40
10x2+30x+2064-100b2
(-2xy)2•(xy)2(4a-4b)(a-b)
-2x(x+4)(x+3)(2x+y-4)2
70.2×
69.83972
20ab(4x2y4-x3y4z4)÷
(x-2)2+(3x-1)(2x-1)4(y+z)2-(3y-z)(2y-z)
100x2-y2(m-a)(x-3y)-(m-a)(x+2y)
a2+4an+4n29+24(n+d)+16(n+d)2
c3-25cx4-256
85a3-60a3b6a4bc-60b2
4p(x+8)+8q(x+8)8(x+8)+m(x+8)
9-100b218x2-2y2
0.25x2-169(6x+y)2-(5x-10y)2
16-40y+25y2(a-b)2+10m(a-b)+25m2
9y2-18y+936a2+12a(x+y)+(x+y)2
x2-5x+6x2+9x-10
10x2+39x+141-36y2
(2x3y3)3•(xy)2(a+b)(6a+5b)
-2x(x-1)(x-1)(5x-y-4)2
8.1×
7.979972
(5a)2•b2÷
14a2b2(x4y2-5x4y2z3)÷
7xy2
(x+2)2+(2x+1)(4x-3)4(y-z)2-(2y+z)(4y-z)
x2-y2(m+d)(x+6y)-(m+d)(3x+y)
a2-20ax+100x29+30(d+n)+25(d+n)2
a3-4ax4-256
85a3+90a218ab3c+70b
16p(3+b)-32p(3+b)4(3+b)-m(3+b)
100-100x2100x2-64y2
36a2-169(x-y)2-(2x+y)2
36+96b+64b2(a-b)2-10m(a-b)+25m2
36n2-120n+1009a2+6a(m-n)+(m-n)2
x2+10x+24x2+8x-9
12x2-13x+325-25y2
(3xy3)2•(-x3y)3(a-5b)(a+b)
-3x(x-1)(x+4)(6x+y+4)2
90.3×
89.73992
(8a)3•b2•12ab(7x3y4+x3y2z3)÷
x2y
4(x+4)2+(4x+3)(2x+2)3(y+z)2-(3y+z)(2y-z)
81x2-y2(q-a)(2x+2y)-(q-a)(4x+y)
a2+16ab+64b29-36(c-p)+36(c-p)2
d3-4dx4-16
75a3-90a2b10a3bc+40b4
6p(y-8)-36q(y-8)8(y-8)-m(y-8)
16-25a275x2-27y2
9y2-144(4x-y)2-(7x+y)2
36+84m+49m2(x-y)2-10m(x-y)+25m2
81m2-54m+916a2-8a(a-b)+(a-b)2
x2+13x+40x2-8x-20
20x2+43x+1481-4y2
(2x2y2)2•(xy)2(a+b)(5a-6b)
3x(x-1)(x+5)(x+y+4)2
4.870022
(7a)2•b4•4a2b(x2y4+x3y2z3)÷
(x-4)2-(4x+4)(3x-4)4(y+z)2-(4y+z)(2y-z)
x2-y2(q-b)(3x-4y)+(q-b)(4x-y)
a2-6ab+9b24+12(q-d)+9(q-d)2
c3-49cx4-81
55a-60ab14abc-30b
6q(y-7)+4q(y-7)8(y-7)+m(y-7)
100-81x232x2-2y2
4b2-25(x-y)2-(x-10y)2
100-40b+4b2(x+y)2+6m(x+y)+9m2
36x2+12x+19a2+6a(m+n)+(m+n)2
x2-7x+12x2-4x-21
5x2-39x+5449-25m2
(-2x3y)2•(-x2y)2(a-b)(4a+3b)
2x(x+4)(x-4)(x+y-3)2
9.2×
8.899972
(4a)2•b2•2ab(x4y3-x3y3z2)•x2y2
4(x-4)2-(2x+2)(3x+1)(y-z)2-(2y+z)(4y+z)
x2-49y2(q-c)(6x-y)+(q-c)(x-5y)
a2-4ax+4x29+24(p+b)+16(p+b)2
b3-81bx4-16
90a+20a2ab2c+40b2c
2p(6+a)+32q(6+a)4(6+a)+m(6+a)
1-64m275x2-3y2
0.49y2-144(5x-4y)2-(8x+y)2
81+126b+49b2(x+y)2+4m(x+y)+4m2
9m2+60m+1009a2-6a(a+b)+(a+b)2
x2+12x+27x2-7x-8
16x2-44x+101-36y2
(3x2y3)3•(xy3)2(a-2b)(2a-b)
3x(x-1)(x-4)(5x-4y+1)2
89.730002
12a2b2(x3y4-4x3y4z4)÷
2(x+4)2-(3x-1)(3x-3)(y+z)2+(2y-z)(4y-z)