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18Word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18Word格式文档下载.docx
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(3x3y3)3•(x3y)2(a-6b)(a+b)
-2x(x-4)(x+4)(x+y+2)2
20.3×
19.749982
(9a)3•b2÷
18a2b(6x4y3+9x4y3z4)÷
3(x-1)2-(3x-5)(4x+4)(y-z)2-(2y+z)(2y-z)
9x2-y2(d-n)(6x+y)+(d-n)(4x-y)
a2+12ab+36b236+24(d+q)+4(d+q)2
d3-4d81x4-81
(2x3y3)3•(x3y)3(5a-b)(3a+2b)
-2x(x-4)(x-2)(5x+5y+3)2
50.3×
49.75972
(2a)2•b4•10a2b(2x2y3-x4y3z2)÷
8xy
2(x+2)2+(2x-2)(3x+1)4(y-z)2+(2y+z)(3y+z)
64x2-y2(b+n)(x+5y)-(b+n)(6x-y)
a2+6ab+9b225+20(q+c)+4(q+c)2
d3-49dx4-81
(-3x2y2)2•(-xy)2(a+b)(5a-2b)
3x(x+5)(x+1)(x-y-1)2
2.4×
1.669972
(4a)2•b2÷
18a2b(x3y3-5x2y3z4)•xy
4(x+2)2-(4x+1)(3x+1)(y-z)2+(3y-z)(4y+z)
4x2-y2(d-p)(5x-3y)+(d-p)(2x+2y)
a2+8an+16n29-30(c-p)+25(c-p)2
a3-9ax4-1
(2xy)2•(-x2y)3(a+4b)(a-b)
2x(x+1)(x-3)(x-3y-1)2
2.3×
1.720052
(2a)3•b2÷
16a2b(3x3y4-x4y3z4)•x2y
(x+2)2-(4x-4)(2x-4)3(y-z)2+(2y-z)(2y+z)
x2-y2(q+b)(x-2y)-(q+b)(x+3y)
a2+12ab+36b236-72(p+c)+36(p+c)2
c3-25c16x4-16
(2xy)2•(-xy)3(a-b)(4a-2b)
-2x(x+1)(x+3)(x-y+3)2
60.2×
59.810042
(4a)2•b3÷
14ab2(x4y2+3x3y3z4)•4xy2
3(x+2)2-(3x+5)(2x+2)4(y-z)2+(2y-z)(2y-z)
x2-y2(n+b)(4x-2y)-(n+b)(x+2y)
a2-6ay+9y29+18(c-n)+9(c-n)2
d3-81dx4-1
(2x3y)3•(xy)3(4a+b)(4a+2b)
-2x(x-2)(x+3)(5x+3y-4)2
80.3×
79.75032
(2a)2•b3÷
10ab2(8x2y3+x4y2z2)•5xy2
(x+4)2-(4x+1)(3x+3)(y-z)2+(4y-z)(4y-z)
49x2-9y2(q+b)(x+y)-(q+b)(6x+y)
a2-8ab+16b216-24(a-n)+9(a-n)2
c3-81cx4-16
(-2x2y3)2•(-xy)2(5a-b)(3a+b)
-2x(x+1)(x+5)(x-4y-3)2
4.4×
3.64032
(9a)2•b3•4ab2(7x3y4+6x4y3z4)•xy
4(x-1)2-(4x+1)(2x-1)2(y+z)2+(4y+z)(3y+z)
16x2-y2(b+n)(2x-4y)-(b+n)(x-2y)
a2-20ab+100b24+8(d+m)+4(d+m)2
b3-36b81x4-256
(2x3y)3•(x2y2)3(a+5b)(2a+6b)
-3x(x-4)(x+4)(x+2y+1)2
79.799952
(9a)3•b3÷
20a2b(x4y3+7x3y3z4)÷
(x+2)2+(3x+5)(3x+5)(y-z)2+(2y+z)(4y+z)
x2-y2(b-m)(4x+2y)-(b-m)(x+y)
a2+10am+25m24-16(n+a)+16(n+a)2
b3-81b81x4-256
(3x2y2)3•(xy3)3(4a-3b)(a+2b)
3x(x-5)(x+1)(4x+3y+4)2
6.3×
5.74012
(6a)3•b4•6a2b(x3y4+2x2y2z4)•x2y2
2(x-4)2-(4x-1)(4x+1)(y+z)2+(4y-z)(2y-z)
x2-y2(b-p)(6x+4y)-(b-p)(x-4y)
a2+8ay+16y236+36(b-q)+9(b-q)2
b3-81b16x4-1
(-3xy)3•(-xy)2(4a-5b)(a+b)
2x(x-4)(x+4)(3x+5y-3)2
6.2×
5.839982
(6a)3•b2•12ab2(8x2y4-5x3y3z4)÷
xy2
3(x-4)2+(3x-3)(3x+3)4(y+z)2+(2y+z)(3y-z)
x2-25y2(q+b)(x-6y)-(q+b)(6x+y)
a2-10ax+25x236-60(a+q)+25(a+q)2
a3-49a81x4-16
(3x3y3)3•(x2y)3(5a-3b)(3a-b)
-2x(x+3)(x+3)(2x+y-1)2
7.3×
6.78992
(6a)2•b4÷
20a2b(x2y2+x2y3z2)•3x2y2
3(x+2)2-(2x-5)(2x-2)2(y+z)2+(4y+z)(4y+z)
x2-9y2(c+q)(x+y)+(c+q)(x-y)
a2+12an+36n236+72(b+p)+36(b+p)2
b3-4b81x4-1
(2xy3)2•(-xy)3(a-2b)(a-b)
3x(x+1)(x-2)(5x+6y-1)2
8.3×
7.719992
(2a)2•b4•10a2b(9x2y3-3x2y2z3)÷
(x-3)2-(3x+1)(4x-4)(y+z)2-(3y+z)(3y-z)
64x2-y2(a-n)(3x-2y)+(a-n)(x+y)
a2-14ax+49x24+16(d-p)+16(d-p)2
(-2x3y)2•(-x3y)3(2a+b)(5a+b)
-2x(x+5)(x+4)(6x+y+4)2
40.3×
39.750032
(3a)2•b3÷
10a2b2(4x4y3+2x2y4z2)•7xy
(x+3)2+(4x+1)(2x+5)4(y-z)2+(4y+z)(4y-z)
49x2-16y2(c+p)(x+y)+(c+p)(x-2y)
a2-16ay+64y225+70(p-b)+49(p-b)2
(-3xy2)3•(-x3y)3(a-5b)(2a+2b)
-2x(x+5)(x-1)(x+3y-3)2
9.2×
8.81992
(7a)3•b2÷
20a2b(5x2y4+x4y2z2)•7xy
2(x-2)2+(2x+3)(2x+3)(y+z)2-(2y-z)(2y+z)
36x2-16y2(n+b)(3x+y)-(n+b)(3x-4y)
a2+20am+100m216+48(d-q)+36(d-q)2
c3-81cx4-256
(2xy)3•(-x3y3)3(4a+b)(6a-b)
-3x(x-2)(x+5)(5x+y+1)2
7.2×
6.849982
(6a)2•b3÷
16a2b2(x4y4+2x3y2z4)÷
7xy2
4(x+4)2+(2x-5)(3x-1)(y+z)2+(4y-z)(2y-z)
16x2-y2(c-n)(3x+6y)+(c-n)(x-y)
a2-14ax+49x236+72(q+a)+36(q+a)2
b3-100bx4-81
(-2xy2)3•(-x2y2)2(a-b)(5a-3b)
-2x(x+1)(x-3)(4x-2y+4)2
7.1×
6.9972
(2a)3•b3÷
12ab2(3x3y2+x2y3z2)•4xy2
4(x+1)2+(4x-5)(4x-5)(y+z)2-(2y-z)(2y+z)
x2-y2(m+a)(2x+6y)+(m+a)(4x+4y)
a2-12ax+36x236+60(a+q)+25(a+q)2
b3-9b81x4-256
(2xy)2•(xy3)3(a+6b)(4a-6b)
2x(x-2)(x+5)(x+6y+4)2
1.3×
0.730002
(5a)3•b3•14a2b2(6x2y2+x4y2z4)÷
6x2y
4(x+4)2+(3x+3)(2x+5)(y-z)2-(4y-z)(4y+z)
16x2-16y2(b+m)(x+y)-(b+m)(3x+y)
a2+16ax+64x29+42(a+q)+49(a+q)2
b3-64bx4-81
(-3x2y)2•(-xy2)2(a-2b)(5a+3b)
2x(x-3)(x-3)(5x+y+2)2
4.2×
3.869952
(5a)2•b4•14a2b(3x3y3+x2y2z2)÷
4xy
4(x+3)2+(4x-4)(2x-3)(y-z)2+(2y-z)(4y-z)
9x2-81y2(m-c)(2x-3y)+(m-c)(5x+5y)
a2-4ab+4b24+16(c-q)+16(c-q)2
c3-16c16x4-16
(-2x3y)3•(-x2y3)2(a-3b)(a+b)
3x(x+5)(x+2)(6x-y+3)2
20.2×
19.86002
(4a)3•b3÷
8a2b2(5x4y2-3x2y2z4)÷
8xy2
(x-4)2-(3x-1)(3x+4)4(y+z)2+(3y-z)(4y+z)
100x2-y2(d-n)(x+y)-(d-n)(6x-y)
a2-10ab+25b225-70(d-q)+49(d-q)2
d3-16dx4-256
(-3xy3)2•(-xy3)3(6a+b)(6a+b)
-3x(x+3)(x-4)(5x-y+2)2
19.79992
(3a)3•b2•20ab2(2x3y2-6x4y3z2)÷
4x2y2
(x-4)2-(3x-4)(2x+3)(y+z)2+(3y+z)(4y+z)
x2-y2(a+p)(4x+6y)+(a+p)(x-y)
a2-10ab+25b29+30(m+d)+25(m+d)2
d3-9dx4-81
(-2xy)2•(-x2y3)3(a-b)(2a+b)
2x(x-3)(x-4)(2x-3y-1)2
40.4×
39.62032
(7a)3•b2•14ab(3x4y2-x2y2z4)•9x2y2
(x-1)2-(3x-4)(4x+1)(y+z)2-(4y+z)(3y+z)
16x2-100y2(c-q)(x-4y)+(c-q)(x-y)
a2-8ab+16b225-30(m+a)+9(m+a)2
a3-49a81x4-1
(3xy)2•(xy3)2(a+4b)(a+5b)
3x(x-5)(x-5)(x-y-4)2
80.4×
79.6100002
(2a)3•b4•6ab(x4y4+x3y4z2)•x2y
2(x-2)2-(3x+3)(3x-4)4(y+z)2-(4y+z)(3y-z)
49x2-y2(p+b)(4x-y)+(p+b)(x+y)
a2-6am+9m216+24(q+b)+9(q+b)2
a3-100ax4-256
(-2xy2)2•(-xy3)2(a+4b)(a-b)
-3x(x+1)(x-2)(4x+y+1)2
6.4×
5.67032
(2a)2•b2÷
6ab2(x4y4-2x4y3z2)•xy2
4(x-2)2-(3x+5)(2x+5)(y+z)2+(4y+z)(4y+z)
49x2-36y2(c+q)(x+y)-(c+q)(x-y)
a2-18ab+81b236+24(a+m)+4(a+m)2
a3-25a16x4-1
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