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82Word格式文档下载.docx
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(-2xy2)3•(x3y)3(3a-5b)(a-4b)
2x(x+2)(x-1)(x-y-2)2
4.2×
3.860052
(7a)2•b4•12a2b(7x2y2+x4y2z2)÷
4x2y2
4(x+2)2-(4x+1)(4x+4)(y+z)2-(2y+z)(2y-z)
64x2-y2(c-n)(x-y)-(c-n)(6x-y)
a2-20am+100m216+16(b-n)+4(b-n)2
c3-4c81x4-16
(-2x3y3)3•(xy)2(5a-5b)(a+b)
3x(x-1)(x+3)(4x-4y-1)2
30.4×
29.6100012
(8a)3•b4•14ab(x3y4-3x2y2z4)•5x2y2
3(x+1)2-(3x+5)(4x+5)4(y+z)2+(4y-z)(4y-z)
x2-36y2(b-m)(4x+y)-(b-m)(x-y)
a2+6ay+9y29+24(p-d)+16(p-d)2
a3-36a81x4-256
(3xy)2•(x2y)2(a-2b)(2a-b)
3x(x-5)(x-2)(2x-y-4)2
1.2×
0.879972
(4a)3•b3÷
2a2b2(x3y4-8x4y4z4)•x2y2
(x-1)2-(3x-5)(3x-4)3(y+z)2-(3y+z)(3y+z)
x2-25y2(q+d)(x-4y)-(q+d)(6x-y)
a2+4am+4m236+60(d+n)+25(d+n)2
c3-100cx4-256
(-3xy)3•(xy)3(a-b)(2a-b)
-2x(x-1)(x+1)(4x-4y+4)2
50.3×
49.760022
(9a)2•b3÷
4a2b(x4y4+x3y3z2)•x2y2
(x+3)2+(2x-3)(4x-5)4(y+z)2-(4y-z)(4y-z)
x2-100y2(c-q)(3x+6y)-(c-q)(2x-y)
a2+10ax+25x225-20(b+q)+4(b+q)2
c3-4c81x4-1
(-3x3y2)2•(x2y)3(a-4b)(4a+b)
-3x(x-1)(x-1)(5x-2y-3)2
30.2×
29.879982
(6a)3•b2÷
8a2b(9x3y4-4x4y2z2)÷
x2y2
(x-4)2-(4x+2)(2x+4)3(y+z)2+(4y-z)(4y+z)
49x2-y2(q-b)(2x+6y)-(q-b)(3x-3y)
a2-10an+25n236+24(d-n)+4(d-n)2
c3-25cx4-81
(2xy)3•(xy)2(a-b)(a-b)
-2x(x+1)(x+5)(x-2y+4)2
9.4×
8.610052
(4a)3•b2•4a2b2(9x2y4+x2y3z2)•2x2y2
4(x-2)2-(2x+5)(3x-2)2(y-z)2-(4y+z)(2y-z)
25x2-9y2(a+n)(x+y)+(a+n)(6x-2y)
a2-14ab+49b236+72(p+d)+36(p+d)2
c3-36c16x4-16
(3xy)3•(-x2y)2(2a-4b)(a-3b)
-2x(x-1)(x-2)(3x-y-2)2
29.68962
(7a)2•b4•14ab2(4x2y4-9x4y4z2)÷
x2y
(x-3)2+(3x-4)(2x-5)2(y+z)2+(2y+z)(2y-z)
x2-16y2(a-m)(3x+5y)-(a-m)(x+y)
a2+12ax+36x225+40(b-n)+16(b-n)2
a3-25a81x4-1
(-2xy2)2•(-xy3)2(a-3b)(a-b)
-2x(x-2)(x+1)(5x+3y-2)2
50.4×
49.620032
(3a)2•b2÷
20a2b2(x3y2-x4y4z2)•x2y
2(x+3)2+(2x-3)(3x+2)(y-z)2+(3y-z)(4y+z)
x2-y2(q-c)(x+y)-(q-c)(x-y)
a2-14ay+49y236+84(m+b)+49(m+b)2
c3-9cx4-256
(-3x3y3)2•(xy2)2(3a-3b)(3a-3b)
-2x(x-2)(x+1)(x+y-1)2
60.1×
59.93972
(3a)3•b3÷
16a2b(x4y2-x2y2z3)÷
2(x+1)2-(2x+3)(3x+1)2(y+z)2+(3y+z)(3y-z)
x2-y2(c-p)(2x+y)-(c-p)(x-3y)
a2+18ay+81y29+36(q-d)+36(q-d)2
a3-36ax4-16
(-2x2y)3•(-x3y)3(a-b)(a-2b)
-2x(x-3)(x+2)(4x-6y+4)2
6.1×
5.950032
(6a)2•b3÷
18ab(3x4y4+x4y3z3)•2x2y
4(x-4)2-(4x-1)(4x-1)(y+z)2+(3y-z)(4y-z)
x2-64y2(n+d)(x+6y)+(n+d)(5x-6y)
a2+10ay+25y24-8(d+q)+4(d+q)2
d3-9dx4-81
(3x2y3)3•(-x3y)2(3a+b)(a+5b)
-2x(x-4)(x+3)(5x-y-1)2
4.4×
3.679992
(7a)2•b4÷
6ab2(x4y2-4x2y4z2)÷
xy
(x-1)2+(2x+3)(4x+3)(y+z)2-(3y+z)(2y+z)
x2-y2(m+c)(4x+y)+(m+c)(x-y)
a2-18ay+81y225+40(n+b)+16(n+b)2
a3-100ax4-1
(2x2y3)3•(-x2y)2(a-5b)(a+2b)
2x(x-1)(x+4)(x+6y+3)2
8.2×
7.8100052
(9a)3•b2÷
14ab2(8x2y4+5x4y4z4)÷
5xy
4(x+4)2+(3x-2)(3x+4)2(y-z)2-(2y-z)(4y+z)
9x2-25y2(c-m)(x-5y)+(c-m)(3x+2y)
a2-18ay+81y216-24(n+d)+9(n+d)2
c3-16cx4-16
(3x2y)2•(-xy)2(a+b)(a+6b)
2x(x+5)(x-2)(x-y-1)2
1.4×
0.69992
(7a)3•b2•8a2b(x3y4+x3y3z3)•x2y
3(x-2)2-(4x-4)(2x-1)(y+z)2-(2y-z)(3y+z)
x2-64y2(m+a)(4x-y)-(m+a)(x-5y)
a2-16am+64m29-30(m-c)+25(m-c)2
d3-9d81x4-256
(2xy)3•(x3y)3(a+b)(a+3b)
2x(x-3)(x-3)(x-y-4)2
10.2×
9.83042
(5a)3•b3•14a2b2(x3y3+x3y4z2)÷
3(x-3)2+(4x+5)(4x-1)(y-z)2+(4y-z)(3y+z)
x2-25y2(q+a)(5x+y)-(q+a)(x+6y)
a2-12ax+36x216-16(d-q)+4(d-q)2
b3-4bx4-1
(-3x3y)3•(x2y2)3(3a-5b)(4a+b)
3x(x-1)(x-3)(x-4y+4)2
20.2×
19.85022
(8a)3•b4•8a2b(4x3y2+3x3y4z2)•5x2y
(x-3)2-(2x-4)(4x+3)3(y+z)2+(2y+z)(4y-z)
9x2-9y2(p+a)(6x-5y)-(p+a)(x-y)
a2-12an+36n24-12(q+c)+9(q+c)2
c3-64c16x4-81
(3x2y2)3•(-x2y2)2(a-b)(5a-2b)
3x(x+1)(x-1)(x-2y-2)2
9.1×
8.929972
(8a)3•b2•20a2b2(2x2y4-7x2y3z4)•7x2y
(x+3)2-(4x+2)(2x+5)3(y+z)2+(2y+z)(4y-z)
9x2-y2(a-m)(x+y)+(a-m)(x+3y)
a2-4ab+4b24-16(q-b)+16(q-b)2
c3-9c16x4-256
(2xy2)2•(xy)2(6a+b)(a-2b)
-2x(x+4)(x+2)(x+4y+1)2
3.77002
(8a)3•b4•4ab2(x2y4+x2y4z3)•x2y
(x-2)2-(4x-5)(2x-3)(y-z)2+(4y-z)(3y+z)
x2-y2(m-c)(x+2y)+(m-c)(5x-6y)
a2+18ax+81x216-48(a+p)+36(a+p)2
d3-49dx4-16
(3x2y3)2•(xy2)2(a+4b)(6a-3b)
-3x(x-3)(x+1)(x+4y+2)2
20.4×
19.680022
(5a)3•b3•6a2b2(7x4y4-x4y4z4)÷
9x2y
(x+4)2+(4x-4)(2x-2)2(y-z)2+(3y-z)(4y-z)
x2-81y2(b+n)(6x-y)-(b+n)(4x-2y)
a2+8an+16n225-60(b+m)+36(b+m)2
d3-64dx4-256
(2xy2)2•(-x2y2)3(2a-b)(a-b)
2x(x-1)(x+1)(5x+y-3)2
8.92992
(6a)2•b2÷
4ab(6x4y2+3x2y2z3)÷
2(x+3)2+(4x+5)(2x+1)(y-z)2-(2y-z)(4y-z)
64x2-100y2(q-b)(3x-y)-(q-b)(x+y)
a2-8an+16n225+60(n+c)+36(n+c)2
d3-81dx4-1
(-2xy)2•(-x2y)2(4a-b)(a-b)
2x(x+3)(x+1)(x+y-2)2
1.3×
0.769982
(8a)2•b3•2ab(x2y4-3x2y4z3)÷
9xy
4(x+4)2+(3x+1)(3x-3)(y-z)2+(2y+z)(3y+z)
49x2-9y2(q-a)(4x+y)+(q-a)(x-y)
a2-20an+100n29-12(n-c)+4(n-c)2
d3-36d81x4-256
(2x3y)2•(-x3y2)2(a-6b)(a+5b)
-3x(x+4)(x+2)(x+3y+4)2
20.3×
19.780022
18ab(2x2y3+x4y3z2)•x2y
3(x+1)2-(3x+2)(4x-3)(y+z)2-(4y-z)(2y-z)
x2-100y2(n-c)(x+5y)+(n-c)(x-4y)
a2+14ab+49b236-48(b+n)+16(b+n)2
b3-36bx4-81
(3xy)3•(-x3y)2(a+2b)(5a-b)
-2x(x-2)(x-2)(6x+6y+1)2
3.1×
2.910032
(9a)2•b3•10a2b2(6x4y3-x3y2z3)÷
7xy
3(x-4)2+(3x-3)(3x+3)3(y+z)2+(3y+z)(3y-z)
x2-36y2(p+c)(4x-y)+(p+c)(4x+2y)
a2+20ay+100y29+24(c+m)+16(c+m)2
a3-49a81x4-81
(-2xy3)3•(-x2y2)3(6a-b)(3a-2b)
-2x(x+1)(x-1)(x+6y+3)2
0.74952
(4a)2•b2÷
6ab(x3y4-x3y3z3)÷
(x-4)2+(3x+1)(3x-4)(y+z)2+(2y+z)(3y-z)
16x2-25y2(b-m)(x-2y)-(b-m)(6x+y)
a2-16an+64n24+12(b-n)+9(b-n)2
d3-64dx4-81