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92文档格式.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92文档格式.docx
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2x(x-5)(x+5)(x-2y+3)2
3.2×
2.81972
(5a)3•b4÷
10ab2(4x3y3-x4y4z3)÷
4x2y
3(x-1)2+(3x+5)(2x-5)(y+z)2+(4y+z)(3y-z)
4x2-25y2(c-q)(x-5y)+(c-q)(x+2y)
a2+6ab+9b29+18(p+a)+9(p+a)2
a3-81ax4-16
(2x2y)3•(-x2y)3(a+b)(a-b)
-3x(x-5)(x-3)(x+y+3)2
6.2×
5.860042
(3a)3•b2•2ab2(9x2y2+4x2y3z4)•xy
(x+1)2-(2x-4)(4x-4)(y-z)2-(3y+z)(2y+z)
64x2-y2(a-p)(2x-3y)+(a-p)(x-5y)
a2+18ax+81x225+30(a-p)+9(a-p)2
c3-16cx4-256
(3x3y)3•(xy)2(a-3b)(6a+b)
2x(x+5)(x-5)(2x-y-2)2
20.1×
19.989992
(3a)3•b2•20a2b2(7x2y2-6x3y2z3)•x2y
(x+2)2+(4x-2)(2x-1)4(y-z)2+(4y-z)(4y-z)
9x2-9y2(c+m)(x+6y)+(c+m)(6x-6y)
a2+16ab+64b216-32(m+d)+16(m+d)2
d3-64d16x4-1
(3xy)3•(x3y3)3(3a-b)(a+5b)
2x(x-1)(x+2)(x-2y-1)2
30.2×
29.88002
(4a)3•b4•8ab2(2x4y2+3x2y4z3)÷
5xy
4(x-2)2-(3x-5)(4x-3)(y+z)2+(4y+z)(3y-z)
x2-y2(c+q)(x-2y)-(c+q)(4x+y)
a2+4ax+4x225-40(m+b)+16(m+b)2
c3-81c16x4-1
(-3x3y)3•(-x2y)2(a+4b)(a-4b)
2x(x-2)(x-2)(x-6y-4)2
70.1×
69.910042
(8a)3•b4•14ab2(x3y2-3x3y3z2)•4xy
4(x-3)2-(2x+4)(3x-1)4(y-z)2-(4y+z)(4y-z)
x2-64y2(a+q)(x+y)+(a+q)(x+y)
a2+6am+9m225+60(b+p)+36(b+p)2
b3-36bx4-16
(-3x3y3)3•(xy2)3(4a+b)(3a-b)
-3x(x+1)(x-4)(x+2y+2)2
40.1×
39.99032
(6a)2•b2•18ab(x2y2-x3y3z4)÷
4(x+1)2-(2x+3)(4x-3)(y+z)2-(3y+z)(3y-z)
x2-y2(q-d)(4x+2y)-(q-d)(2x-2y)
a2+14ay+49y225-70(n+a)+49(n+a)2
a3-64ax4-1
(2xy)3•(-x2y)3(4a+b)(4a+b)
-2x(x+4)(x+5)(6x+6y-2)2
60.2×
59.86972
(6a)2•b2÷
6ab2(x3y4-x4y3z3)•9xy2
4(x+2)2+(4x+4)(4x+5)(y+z)2-(3y-z)(2y+z)
x2-9y2(c-n)(4x-y)-(c-n)(x+y)
a2+6am+9m225-30(a+n)+9(a+n)2
d3-100d81x4-256
(3xy2)2•(xy)2(3a+b)(a+b)
3x(x+4)(x-4)(4x-y+4)2
2.2×
1.889952
(6a)2•b4•2a2b(3x2y3-2x3y4z2)•xy2
4(x-1)2+(4x-3)(3x-2)2(y-z)2+(4y+z)(2y+z)
x2-y2(p-b)(5x+3y)-(p-b)(x-y)
a2+6ax+9x225+20(n+a)+4(n+a)2
c3-9cx4-256
(-2x2y3)2•(-x2y2)2(a-5b)(4a+b)
-2x(x+1)(x-2)(x-6y+3)2
9.3×
8.770012
(3a)2•b2÷
4ab(5x2y4+x4y4z2)÷
xy2
3(x+1)2-(3x-2)(3x-3)(y-z)2+(2y+z)(2y+z)
x2-y2(m+a)(2x-y)+(m+a)(4x+3y)
a2+20ay+100y29+30(q+c)+25(q+c)2
b3-100bx4-1
(3x2y2)3•(xy)3(4a-b)(5a+b)
2x(x-1)(x-4)(2x-y+3)2
2.4×
1.64042
(4a)2•b2÷
14a2b2(5x2y3-x2y2z2)÷
x2y2
3(x+3)2-(4x+3)(2x-4)4(y-z)2+(3y-z)(3y-z)
x2-y2(b+n)(x-6y)-(b+n)(x+y)
a2-20an+100n24+24(p+b)+36(p+b)2
c3-4c81x4-16
(-2x3y3)2•(xy3)2(3a+6b)(a-5b)
-3x(x-5)(x-1)(x-6y+3)2
4.4×
3.66052
(3a)2•b4•10ab2(x2y3-4x2y4z2)÷
5xy2
(x+3)2+(4x+2)(4x+3)(y+z)2+(4y-z)(4y-z)
49x2-9y2(a+p)(x+5y)-(a+p)(2x+4y)
a2-12ay+36y236-72(b-p)+36(b-p)2
b3-49b81x4-256
(-3x2y)3•(-xy3)2(4a-5b)(4a-b)
3x(x-3)(x+5)(3x-3y+2)2
40.4×
39.640052
(8a)3•b2÷
2a2b2(2x4y3+x2y4z2)•8x2y2
(x+4)2-(3x+4)(4x-2)4(y+z)2-(4y-z)(2y+z)
x2-y2(n-c)(6x-6y)+(n-c)(4x-5y)
a2+14am+49m216+40(c-m)+25(c-m)2
d3-9dx4-256
(2xy)3•(-x2y)2(3a-2b)(a-2b)
3x(x-5)(x+5)(x-y-1)2
7.4×
6.68002
(6a)2•b2•8a2b(8x4y2+x4y3z2)•xy
(x-2)2+(4x+4)(2x+3)2(y+z)2-(4y+z)(4y-z)
x2-36y2(n+a)(x+2y)+(n+a)(x+2y)
a2-20an+100n216+48(d-p)+36(d-p)2
d3-100dx4-1
(-2x2y)3•(xy)3(2a-6b)(2a+4b)
-3x(x-1)(x+4)(3x+3y+4)2
8.1×
7.96962
(8a)2•b4•8ab2(x3y2-x4y4z2)÷
x2y
4(x+3)2-(4x+4)(2x+1)(y+z)2-(3y+z)(4y+z)
36x2-y2(d-n)(x+5y)+(d-n)(x+5y)
a2-6an+9n24+24(m-d)+36(m-d)2
c3-64cx4-81
(2x2y2)2•(-xy)2(a+2b)(5a+2b)
-3x(x-5)(x+3)(2x+5y+1)2
19.980032
(2a)3•b2•6ab2(x4y4+x3y4z3)÷
(x-2)2-(3x-4)(3x-2)(y+z)2+(3y-z)(4y+z)
81x2-9y2(n-b)(3x+6y)-(n-b)(x+2y)
a2+10am+25m24-20(b-m)+25(b-m)2
c3-81cx4-16
(2xy3)2•(xy2)2(a-5b)(a+b)
3x(x+1)(x-2)(x+y+2)2
1.770022
(8a)3•b4•4ab2(x3y3-3x3y3z3)÷
2x2y
4(x-4)2-(2x-3)(3x-3)(y+z)2-(2y-z)(4y+z)
100x2-y2(c+m)(2x-y)-(c+m)(x-y)
a2+6ab+9b225+20(a-m)+4(a-m)2
c3-81cx4-1
(3x2y)2•(x2y)2(3a-b)(2a-b)
3x(x+1)(x-3)(x+2y+2)2
8.2×
7.84052
(7a)3•b2÷
8a2b2(8x3y3-2x2y4z2)•xy
(x-3)2+(4x-1)(4x+2)(y+z)2-(3y+z)(4y+z)
x2-y2(d+m)(x+y)+(d+m)(2x+5y)
a2-4ay+4y225+20(p+a)+4(p+a)2
c3-25c16x4-256
(3x3y)2•(-x3y)2(a+b)(2a-2b)
3x(x+5)(x+4)(6x+5y-3)2
50.1×
49.940022
(6a)2•b4÷
2a2b2(3x2y4-x4y3z4)•7x2y2
2(x+3)2-(4x+2)(3x+5)(y+z)2-(2y+z)(3y+z)
x2-16y2(c-m)(x+y)-(c-m)(x-y)
a2-14ay+49y225-70(b+m)+49(b+m)2
c3-4cx4-16
(3x3y)2•(x2y2)3(a-5b)(5a+2b)
-3x(x-1)(x-2)(x-2y-2)2
6.3×
5.710032
(2a)3•b2÷
10a2b2(2x4y2+9x2y2z4)÷
8x2y
3(x-4)2-(2x+4)(3x+3)(y-z)2+(3y+z)(3y-z)
36x2-y2(n+d)(3x-y)+(n+d)(x+y)
a2-4an+4n236-48(m+a)+16(m+a)2
a3-100ax4-81
(-2x2y)2•(x3y)2(a+b)(a+b)
-2x(x+5)(x-1)(x-4y+3)2
9.1×
8.93022
(5a)2•b2•16ab(6x4y2-2x2y4z3)•xy
(x+4)2-(2x-2)(4x+3)(y+z)2-(2y-z)(2y-z)
25x2-y2(b+q)(2x+2y)-(b+q)(x-y)
a2-12am+36m225+50(p+b)+25(p+b)2
b3-25b81x4-81
(-2xy2)2•(xy2)3(a-b)(a+b)
-3x(x-4)(x+4)(x-4y-2)2
8.3×
7.749992
(8a)2•b2÷
10a2b(x2y2+x3y3z3)•7x2y
3(x+2)2-(2x+4)(3x-1)(y+z)2+(3y+z)(2y-z)
x2-y2(b-p)(6x-y)+(b-p)(3x-2y)
a2+4ab+4b29+36(n+b)+36(n+b)2
d3-81d81x4-1
(-2xy)2•(-x2y)2(a-2b)(a+b)
-2x(x+5)(x-5)(x+y+2)2
60.1×
59.9952
(8a)2•b2•12ab(7x4y3-9x3y3z4)÷
6x2y2
(x+3)2+(2x-5)(4x+2)2(y-z)2-(3y+z)(4y+z)
x2-y2(q-a)(3x-y)-(q-a)(4x-5y)
a2-18ab+81b225+70(n+a)+49(n+a)2
d3-49d16x4-256
(-2xy)2•(xy)3(4a-6b)(a+3b)
-2x(x-4)(x+4)(x-y-1)2
6.1×
5.98982
(2a)2•b2÷
8a2b(6x3y2-9x4y2z2)•xy2
(x-3)2+(2x+4)(2x+2)(y-z)2-(3y-z)(2y+z)
x2-25y2(b+n)(2x+4y)+(b+n)(x-y)
a2-6ay+9y236+72(m+b)+36(m+b)2
b3-100bx4-16
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