人教版八年级数学上册整式的乘法和因式分解练习题大全75Word格式文档下载.docx
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人教版八年级数学上册整式的乘法和因式分解练习题大全75Word格式文档下载.docx
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(3x3y3)3•(xy2)2(a-3b)(4a-5b)
-3x(x+2)(x-3)(x+y-4)2
7.2×
6.85992
(3a)2•b4÷
20a2b(x3y3-3x3y3z4)•xy
3(x+3)2-(3x-5)(2x-1)4(y-z)2-(2y-z)(2y-z)
49x2-16y2(d-n)(x-y)-(d-n)(5x+y)
a2+18am+81m236+36(n-a)+9(n-a)2
a3-100a81x4-16
(3x2y)3•(-xy2)2(3a+4b)(a-5b)
-3x(x-2)(x+2)(x+6y-4)2
80.3×
79.7952
(8a)3•b4•20a2b2(x2y4-8x4y2z2)÷
xy
(x-3)2-(4x+3)(2x-2)(y+z)2+(3y-z)(2y+z)
25x2-y2(d-m)(3x+2y)-(d-m)(4x-y)
a2-12ay+36y216-48(d+n)+36(d+n)2
b3-81b81x4-16
(-2x2y)3•(-xy2)3(a-b)(4a+3b)
-3x(x+1)(x+1)(6x+3y+2)2
40.4×
39.62992
(4a)2•b2•6a2b(x2y2-3x4y3z4)÷
2(x+2)2+(4x+2)(4x-5)2(y-z)2-(2y+z)(4y+z)
49x2-y2(m+c)(6x-y)+(m+c)(x-3y)
a2+8ax+16x236+60(m+c)+25(m+c)2
c3-16c16x4-16
(3x2y)3•(-x2y2)3(a-2b)(a+b)
3x(x-3)(x-5)(x-5y-4)2
1.1×
0.92032
(8a)2•b4÷
16ab(7x4y4-8x2y4z3)•9xy2
3(x+3)2-(2x+2)(3x-2)(y+z)2-(2y+z)(4y-z)
16x2-y2(d-p)(6x-6y)+(d-p)(x-y)
a2-16an+64n24+8(a-q)+4(a-q)2
b3-49b81x4-256
(-3x3y2)2•(-x2y3)2(4a+2b)(a+3b)
3x(x+4)(x+3)(2x-y-1)2
6.3×
5.73952
(6a)2•b3•10a2b(x4y4+x4y4z3)÷
3x2y
2(x-4)2-(3x-5)(3x+5)(y+z)2+(4y-z)(2y-z)
81x2-y2(n+a)(x-4y)+(n+a)(4x-y)
a2+4ay+4y236-60(m-d)+25(m-d)2
c3-4c81x4-16
(2xy)3•(x3y)2(2a+3b)(a+b)
2x(x-1)(x+4)(6x+3y-1)2
1.4×
0.66032
(5a)2•b3•8ab2(x3y4-9x3y4z3)•x2y
(x-1)2-(3x+2)(2x+1)(y-z)2-(3y-z)(2y-z)
25x2-36y2(c-q)(5x+y)-(c-q)(6x-y)
a2-20ab+100b225+50(a+n)+25(a+n)2
b3-100bx4-16
(-2xy2)3•(x3y2)3(a-b)(2a-6b)
3x(x-2)(x-3)(x+6y+2)2
90.4×
89.660032
(8a)3•b3•16a2b2(x3y2+x3y2z4)÷
x2y2
(x-1)2-(2x+3)(2x+2)(y+z)2-(4y+z)(3y-z)
x2-y2(q+b)(6x-y)-(q+b)(4x+2y)
a2-4an+4n236+72(b-m)+36(b-m)2
c3-4c16x4-1
(2xy)2•(x2y)3(a+3b)(a-5b)
3x(x-4)(x+3)(x+4y-4)2
80.4×
79.680042
(6a)2•b4•6a2b2(x2y2-9x4y4z3)•8xy2
(x+3)2+(3x+4)(4x-1)4(y+z)2+(4y+z)(3y-z)
x2-25y2(d+m)(x+y)-(d+m)(x-y)
a2+12am+36m236+24(p+c)+4(p+c)2
b3-81bx4-81
(-3x2y2)3•(-x3y)2(a-3b)(a-4b)
2x(x-1)(x+3)(x-y-1)2
4.4×
3.64032
(4a)2•b2•20ab2(x4y2-x2y3z2)•7xy2
2(x+1)2-(2x+2)(4x-2)3(y+z)2-(4y-z)(2y+z)
49x2-y2(n+b)(x+y)-(n+b)(2x-y)
a2-12am+36m29-42(q-a)+49(q-a)2
d3-36dx4-81
(3xy3)2•(xy3)3(4a+4b)(a+6b)
2x(x+5)(x-2)(4x+y+4)2
3.3×
2.73962
(4a)3•b4÷
16a2b2(8x3y3-3x3y3z3)÷
x2y
4(x-2)2+(2x+5)(3x+3)2(y+z)2+(2y-z)(3y+z)
25x2-49y2(b-m)(6x-y)+(b-m)(x+4y)
a2-18ax+81x236+48(q-c)+16(q-c)2
c3-64c81x4-1
(3x2y)2•(xy)3(5a+2b)(2a+b)
-2x(x-2)(x-5)(x+y+3)2
9.2×
8.83042
(6a)3•b4•16a2b(9x3y4-x2y3z4)•3xy
4(x+3)2+(4x-2)(4x+1)(y-z)2-(3y-z)(3y-z)
x2-y2(p+c)(x-4y)-(p+c)(4x-2y)
a2-16ab+64b225+70(a-m)+49(a-m)2
b3-64bx4-16
(2x2y)2•(-x3y)3(3a+4b)(a+3b)
2x(x+2)(x+1)(5x+y+1)2
10.1×
9.950022
(4a)2•b4•12a2b(x3y2-4x4y3z4)÷
9xy2
(x+4)2-(2x-5)(3x-2)2(y+z)2-(3y-z)(4y+z)
x2-y2(q+c)(5x-2y)-(q+c)(5x+5y)
a2+18ay+81y236-72(q+b)+36(q+b)2
a3-36ax4-81
(2x2y)3•(x2y2)3(a-6b)(a+4b)
2x(x+2)(x-3)(5x+4y-1)2
20.4×
19.679952
(4a)2•b2÷
10ab(x2y3+4x3y2z2)•4xy2
4(x+3)2-(4x-4)(4x-4)2(y+z)2-(2y+z)(2y-z)
16x2-4y2(q+b)(x+y)+(q+b)(4x-y)
a2-18ab+81b225-60(p-b)+36(p-b)2
c3-81cx4-16
(-2xy3)2•(x3y3)3(a+2b)(a+4b)
-2x(x+5)(x+4)(x-4y-2)2
80.1×
79.999962
(5a)3•b3•6ab2(x4y3+3x2y2z4)•x2y
2(x-1)2+(2x+1)(4x+5)4(y-z)2-(2y+z)(3y-z)
x2-y2(m-d)(4x+y)-(m-d)(x+2y)
a2+16ax+64x24-16(a-q)+16(a-q)2
a3-9ax4-16
(-3xy)2•(-xy)3(5a-b)(a-5b)
2x(x-5)(x+1)(6x-3y-3)2
4.3×
3.760022
(7a)2•b2÷
14ab2(3x3y2+x2y2z3)÷
(x+4)2-(4x+2)(4x+1)(y-z)2+(2y+z)(2y-z)
25x2-16y2(d-m)(x-4y)+(d-m)(x+4y)
a2+16ax+64x24-20(p+c)+25(p+c)2
d3-81dx4-16
(-2x3y2)2•(-x3y3)3(a-3b)(a+3b)
3x(x+2)(x-2)(5x-3y+1)2
8.810002
(4a)3•b2•10ab2(x3y2-x2y3z3)•xy2
3(x+3)2+(3x+3)(2x-2)4(y-z)2-(3y+z)(3y+z)
64x2-100y2(b+q)(x-y)+(b+q)(x-6y)
a2-8am+16m24-20(q+a)+25(q+a)2
b3-4bx4-16
(-3x2y2)3•(-x3y)3(a+b)(2a-5b)
2x(x-4)(x-3)(x+y+1)2
6.860022
(9a)2•b3•8ab(8x2y2-x4y4z4)•xy2
3(x+3)2+(2x-5)(2x+1)(y-z)2+(4y-z)(3y+z)
36x2-y2(n+c)(2x-y)+(n+c)(2x-y)
a2-8ax+16x29+30(q+a)+25(q+a)2
b3-36bx4-81
(2x3y2)2•(-x3y2)2(4a-b)(2a-6b)
-3x(x-5)(x-4)(2x-y+1)2
90.1×
89.94982
(6a)2•b2÷
2a2b(x3y4+4x4y4z4)÷
3x2y2
3(x-3)2+(4x-2)(4x+3)4(y-z)2+(4y+z)(2y+z)
4x2-y2(c+n)(6x-3y)-(c+n)(x+y)
a2-18ab+81b29-24(b-p)+16(b-p)2
c3-81cx4-81
(3x3y3)2•(-x3y3)2(a+b)(a+6b)
3x(x+4)(x-2)(4x-y-1)2
6.1×
5.96022
(7a)2•b2•18ab2(8x4y2+x4y4z2)•4x2y2
2(x-3)2+(4x+3)(4x-5)3(y-z)2+(2y-z)(2y-z)
x2-9y2(c+q)(6x-y)-(c+q)(6x-y)
a2+14an+49n216-16(p-c)+4(p-c)2
a3-36a16x4-81
(-3x2y2)2•(x2y3)2(a+3b)(3a+2b)
-3x(x+1)(x+3)(x+3y+1)2
9.97002
(7a)2•b3÷
16a2b(x4y2-5x3y2z4)÷
2(x-4)2+(4x-2)(3x+1)(y+z)2+(3y-z)(3y+z)
16x2-25y2(d-n)(4x-y)-(d-n)(2x+3y)
a2+12an+36n236-84(c+n)+49(c+n)2
b3-25bx4-1
(2xy3)3•(-xy)3(a-b)(3a-3b)
2x(x-3)(x-2)(6x+y-3)2
89.68992
(9a)2•b3•16ab(x2y4-8x3y4z3)•4x2y2
2(x+1)2+(2x-3)(4x-3)2(y-z)2+(2y-z)(3y-z)
x2-25y2(m-d)(3x+2y)-(m-d)(5x+y)
a2+16ab+64b216+40(m+d)+25(m+d)2
b3-100b16x4-81
(2x2y2)2•(-xy)2(2a+4b)(2a-3b)
2x(x-5)(x+2)(x-5y-3)2
30.3×
29.790052
(2a)3•b4÷
2ab(7x3y2-2x3y2z4)•3xy
(x-1)2-(2x+4)(3x-3)(y-z)2-(3y-z)(3y+z)
x2-9y2(c-p)(x-y)+(c-p)(6x-y)
a2+4an+4n225+40(c+n)+16(c+n)2
b3-16b81x4-81
(3xy)2•(-x3y3)2(4a+4b)(3a+b)
-3x(x+3)(x+1)(4x-5y-2)2
5.2×
4.870022
(9a)2•b4•6a2b(x3y2-x2y2z4)•x2y
(x+1)2-(2x+3)(4x+2)2(y-z)2-(3y+z)(2y+z)
81x2-81y2(q+b)(x-y)+(q+b)(x-y)
a2-10ay+25y225-70(p-d)+49(p-d)2
a3-9ax4-256
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