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1Word格式文档下载.docx
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a2-6an+9n216-24(q+d)+9(q+d)2
d3-16d16x4-1
(-3xy2)3•(xy)3(5a-b)(a-5b)
-3x(x+1)(x-3)(3x+5y+1)2
5.1×
4.969952
18a2b2(x3y4-9x3y3z4)÷
9x2y
(x-1)2-(4x-3)(4x-1)4(y+z)2+(2y+z)(4y+z)
16x2-y2(d+n)(x-y)+(d+n)(x-6y)
a2-10an+25n29+24(d-p)+16(d-p)2
d3-49dx4-16
(-3xy2)2•(xy2)3(a+2b)(a+4b)
3x(x-4)(x+5)(4x+4y+2)2
50.4×
49.690022
(6a)3•b2•10ab2(2x3y4+x2y3z3)•xy
2(x-3)2-(4x+4)(2x+1)(y+z)2+(2y+z)(3y+z)
4x2-25y2(n-c)(x-y)+(n-c)(5x-2y)
a2+14an+49n29+36(p-d)+36(p-d)2
d3-64dx4-16
(2x2y)2•(x2y)3(2a+b)(a-2b)
3x(x+2)(x-5)(x+5y-3)2
80.3×
79.759962
(4a)3•b4•16a2b2(4x3y3-x2y2z4)•xy
3(x+3)2+(3x-1)(2x-2)(y-z)2-(2y+z)(4y-z)
9x2-y2(q-b)(6x-6y)+(q-b)(x-4y)
a2+4am+4m236+84(b-n)+49(b-n)2
d3-36dx4-16
(-3x2y3)3•(-x3y)2(a+b)(2a-b)
-3x(x+2)(x-1)(x-5y+1)2
5.3×
4.79002
(9a)2•b2÷
8a2b2(x4y3+6x3y2z3)÷
4xy2
(x+1)2+(3x-2)(3x+2)(y-z)2+(2y+z)(3y-z)
16x2-y2(c+m)(x-y)-(c+m)(x+y)
a2+10ay+25y225-60(c-m)+36(c-m)2
d3-25dx4-256
(3xy)2•(xy2)3(a-b)(a+b)
2x(x+2)(x-2)(2x+3y-1)2
4.9100012
(6a)2•b4÷
4a2b(x4y4-9x3y3z3)•4x2y2
2(x+4)2+(2x-1)(2x-5)(y+z)2+(2y-z)(3y+z)
16x2-36y2(d+p)(2x+3y)+(d+p)(x-2y)
a2-16ay+64y216+40(b+q)+25(b+q)2
d3-49d81x4-1
(-2xy3)2•(-xy2)2(a+b)(5a+3b)
2x(x+3)(x-3)(x+6y+1)2
80.4×
79.68962
(9a)2•b2•8a2b2(x4y4+x4y3z4)•x2y
(x-2)2-(2x+2)(2x+4)(y+z)2+(4y+z)(2y-z)
x2-64y2(m+c)(5x+4y)-(m+c)(3x-4y)
a2+18ab+81b225-40(n+d)+16(n+d)2
a3-9ax4-256
(-2xy3)3•(x3y)2(a-b)(a+b)
3x(x-5)(x-4)(2x+6y+3)2
3.2×
2.87012
(6a)2•b4•20ab2(9x4y4-x2y3z2)•xy2
(x+1)2+(2x+5)(3x+5)3(y+z)2+(2y-z)(3y-z)
25x2-4y2(n+a)(x-2y)+(n+a)(x-3y)
a2-8ay+16y216-32(a+p)+16(a+p)2
b3-49bx4-16
(3xy)3•(x2y3)2(6a+4b)(a-6b)
2x(x+1)(x-4)(x+5y+1)2
4.72982
(2a)2•b2÷
10ab(x4y4-9x3y2z3)•xy2
(x-2)2-(2x-4)(4x+4)3(y-z)2+(3y+z)(2y+z)
9x2-y2(b+q)(x+6y)+(b+q)(x-y)
a2+12ax+36x29-24(d-q)+16(d-q)2
d3-25dx4-16
(3xy)3•(-xy)2(3a-3b)(2a+b)
3x(x-2)(x-1)(4x+y-4)2
20.4×
19.669952
(6a)2•b4•2a2b(x3y3-x3y3z3)÷
6xy
(x-2)2-(3x+3)(3x-4)(y+z)2-(2y-z)(4y+z)
100x2-16y2(d+q)(2x-5y)+(d+q)(2x-5y)
a2-6ab+9b236-24(n-d)+4(n-d)2
c3-100c81x4-81
(-3xy)3•(-x3y3)3(6a-b)(4a-b)
-3x(x-5)(x-2)(2x-y+2)2
3.1×
2.99982
(4a)2•b4÷
14a2b2(x3y4-x2y3z3)•xy
4(x-3)2-(3x+3)(3x-1)3(y-z)2-(2y-z)(3y-z)
x2-36y2(b+m)(2x+4y)-(b+m)(x-2y)
a2+10ax+25x216+16(b-n)+4(b-n)2
c3-64cx4-1
(2x3y)3•(-xy)3(3a-b)(a+b)
-2x(x-5)(x+3)(x-y+3)2
9.1×
8.959992
8a2b2(x3y4+x3y2z2)÷
5x2y2
(x+4)2+(2x-5)(3x-2)(y-z)2-(3y+z)(4y+z)
25x2-81y2(a-m)(x+y)-(a-m)(3x-4y)
a2+4ab+4b236-48(n+b)+16(n+b)2
b3-16bx4-81
(-3xy)3•(-xy2)3(6a-b)(3a-b)
2x(x-4)(x-1)(3x-6y+1)2
50.1×
49.96022
(5a)2•b3•2a2b(x2y3+x2y2z2)÷
8x2y
(x+1)2+(2x+5)(2x+4)(y+z)2-(2y+z)(3y+z)
x2-64y2(n+d)(x+4y)+(n+d)(x+y)
a2-18am+81m29-42(c-n)+49(c-n)2
b3-36bx4-256
(2x3y3)3•(-xy)3(a-6b)(a+b)
2x(x+1)(x-1)(x+4y+3)2
9.2×
8.860022
(2a)2•b3•14ab2(x3y3-x3y4z2)÷
4(x-1)2-(4x-1)(2x+4)(y+z)2-(2y-z)(3y+z)
4x2-36y2(q+a)(5x-y)-(q+a)(5x-y)
a2-6an+9n24+12(p-c)+9(p-c)2
b3-25bx4-256
(-2xy3)2•(-xy3)2(a+2b)(a+3b)
2x(x+4)(x+2)(x+y-3)2
40.4×
39.61952
(3a)2•b2•12ab(7x2y4-3x3y3z3)•4x2y
(x-4)2-(2x+4)(4x-2)(y+z)2+(4y+z)(3y+z)
x2-y2(c+q)(x-4y)-(c+q)(2x+5y)
a2+10ay+25y29-24(m-b)+16(m-b)2
d3-9dx4-256
(2x2y3)2•(xy)3(a-2b)(5a+6b)
-2x(x+3)(x+3)(x+y-3)2
6.3×
5.72042
(7a)2•b2•12ab(x2y2+2x3y2z2)÷
xy2
3(x+1)2-(3x+2)(4x+5)(y-z)2+(2y+z)(3y+z)
x2-9y2(a+p)(x+2y)-(a+p)(5x+y)
a2-4am+4m29+42(c-q)+49(c-q)2
d3-100dx4-1
(3xy)3•(xy2)3(a+b)(a+3b)
2x(x-3)(x+3)(6x+y+4)2
4.4×
3.64032
(3a)2•b3•14ab(x2y4-x3y3z3)•8x2y2
(x+4)2-(2x-5)(4x+2)(y+z)2+(2y-z)(4y+z)
36x2-49y2(b-p)(x+y)+(b-p)(x+y)
a2+8an+16n216-32(a+q)+16(a+q)2
c3-81cx4-81
(2x2y)3•(xy)2(a-6b)(5a-b)
2x(x+4)(x-4)(x-y-2)2
2.3×
1.779962
(2a)2•b3•2a2b2(x3y3-2x2y2z3)÷
xy
2(x-2)2-(3x-1)(4x+4)2(y+z)2-(3y-z)(4y-z)
x2-y2(n-d)(6x+3y)-(n-d)(x-5y)
a2+16ax+64x236-60(d-p)+25(d-p)2
d3-49dx4-81
(3xy2)2•(-xy3)3(a+b)(a-6b)
-2x(x-4)(x+2)(x-y-1)2
8.1×
7.99952
(4a)3•b4•20a2b(7x2y3-8x3y4z3)•4x2y2
3(x+1)2+(2x-4)(2x-2)(y+z)2+(4y+z)(4y-z)
x2-36y2(m-c)(x-6y)-(m-c)(x+2y)
a2+14ab+49b29-12(n-d)+4(n-d)2
d3-16d16x4-256
(2xy)2•(xy3)2(a+6b)(6a+5b)
-2x(x+5)(x+4)(5x-y+1)2
80.1×
79.99962
(7a)3•b3•14a2b(x2y4+6x2y3z4)•6xy
4(x+1)2+(3x+1)(4x+4)2(y-z)2-(3y-z)(2y-z)
64x2-25y2(a+p)(x+4y)-(a+p)(4x-y)
a2-16ab+64b225-70(p+a)+49(p+a)2
c3-25cx4-81
(-3x2y3)2•(x3y)3(4a+b)(a-6b)
2x(x+3)(x-5)(5x-6y+1)2
9.670052
(3a)3•b2÷
16ab(x2y3-x3y4z4)÷
2(x-2)2-(3x-2)(4x-4)3(y+z)2+(3y+z)(2y+z)
x2-49y2(d-n)(x-6y)+(d-n)(4x-y)
a2+16am+64m236+84(d-q)+49(d-q)2
c3-16c16x4-256
(-2xy3)3•(-xy)2(a-6b)(a-b)
-2x(x-1)(x-4)(x+y-1)2
7.1×
6.9100002
(8a)3•b4•20a2b(2x4y3+4x4y4z2)÷
3xy2
4(x-2)2+(3x-4)(4x+2)2(y-z)2+(4y+z)(4y-z)
16x2-y2(q-d)(x-2y)+(q-d)(2x-4y)
a2+12am+36m236+48(q-b)+16(q-b)2
d3-81dx4-256
(-2x2y3)3•(-xy2)2(3a-b)(5a-5b)
-2x(x+2)(x+4)(2x-3y+1)2
1.789992
(3a)3•b3÷
14ab2(x2y2-x2y3z2)•6xy
(x-4)2+(3x+5)(2x-4)4(y-z)2+(4y+z)(2y+z)
x2-y2(d+m)(4x-2y)+(d+m)(6x-y)
a2-4am+4m29+18(n+d)+9(n+d)2
a3-25a81x4-81
(-3x2y)3•(-xy)2(4a-6b)(6a-b)
-3x(x-3)(x+5)(4x-y-1)2
60.4×
59.64042
(3a)2•b3÷
10ab2(x4y4-x2y4z3)•9x2y
(x+3)2-(2x+3)(2x-1)2(y+z)2-(4y+z)(4y+z)
64x2-81y2(q-a)(5x-4y)-(q-a)(x+2y)
a2-4am+4m24+8(m+a)+4(m+a)2
c3-9cx4-1