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13Word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13Word文档格式.docx
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(-3x2y)3•(-x3y2)2(2a+b)(a+b)
-3x(x+2)(x-4)(3x+6y+2)2
5.3×
4.770012
(8a)3•b2÷
16a2b2(8x3y2-6x4y4z2)÷
8xy
4(x-3)2+(4x-5)(2x-1)(y+z)2+(4y+z)(3y+z)
64x2-25y2(a+n)(x+y)+(a+n)(4x-5y)
a2+20ax+100x236-84(m+b)+49(m+b)2
b3-64b16x4-81
(-3x2y)2•(xy2)3(a+b)(a-5b)
3x(x-4)(x+4)(3x-y+2)2
8.2×
7.820022
(3a)2•b3•16ab2(x2y4+x3y2z2)•xy
(x-2)2-(4x-3)(3x+1)(y+z)2+(3y-z)(3y+z)
x2-100y2(b-m)(6x+y)+(b-m)(2x+5y)
a2+4am+4m225-50(c-n)+25(c-n)2
a3-25ax4-256
(3xy3)3•(-x2y)2(a+b)(3a-2b)
-2x(x-5)(x-1)(x+4y-1)2
80.3×
79.78992
(6a)2•b2÷
4ab(x3y2-5x4y4z4)•xy
(x+3)2+(3x-3)(2x+2)2(y+z)2-(2y-z)(3y+z)
x2-100y2(m-c)(3x+y)+(m-c)(3x+4y)
a2+4ax+4x225+30(c+p)+9(c+p)2
b3-25b16x4-81
(-3xy)2•(-xy)2(a+b)(5a+5b)
-2x(x-3)(x+2)(5x+4y+2)2
50.1×
49.95952
(4a)2•b2•20ab2(x4y3+5x3y3z3)÷
8x2y2
4(x-3)2+(4x-2)(2x-5)2(y-z)2-(3y-z)(3y-z)
64x2-9y2(p-c)(2x+5y)-(p-c)(3x-y)
a2+16am+64m29+36(n+a)+36(n+a)2
b3-25bx4-256
(-2xy2)3•(xy)2(2a+4b)(a-b)
-3x(x-5)(x+1)(x+4y-3)2
1.4×
0.690002
(9a)3•b3÷
16a2b(3x4y2+6x2y3z3)÷
3xy
2(x+2)2+(3x+4)(3x-2)4(y-z)2-(4y+z)(3y-z)
25x2-y2(d+q)(3x+y)-(d+q)(5x+3y)
a2+4am+4m225-70(a+n)+49(a+n)2
c3-16cx4-256
(-3xy)3•(xy)3(a+b)(5a+4b)
3x(x+5)(x-2)(4x+2y-2)2
7.1×
6.920012
(4a)2•b3÷
8a2b(x3y4+6x3y3z4)÷
x2y2
(x-4)2-(3x-2)(3x-1)3(y-z)2+(4y+z)(4y+z)
25x2-y2(m+c)(x-3y)+(m+c)(x-y)
a2-4ab+4b29+36(a+m)+36(a+m)2
c3-81c16x4-81
(-3xy)2•(-xy)3(5a-b)(a+3b)
-3x(x+4)(x-1)(6x-y-1)2
30.1×
29.940052
(3a)3•b4•8ab2(3x4y3+4x2y4z3)•5xy
3(x+4)2+(3x+1)(4x+2)2(y+z)2-(2y+z)(2y-z)
x2-36y2(a-p)(x-2y)-(a-p)(x-y)
a2+8ax+16x216+40(n+d)+25(n+d)2
c3-64cx4-81
(2xy2)2•(-xy3)3(5a+4b)(4a+b)
-3x(x+3)(x+2)(6x-3y-2)2
79.759972
(4a)3•b3÷
4a2b(2x2y3+x4y2z3)÷
xy
3(x+1)2-(4x+1)(4x+3)4(y+z)2+(3y-z)(4y-z)
x2-64y2(m+c)(2x-y)-(m+c)(3x-y)
a2-10am+25m236+36(n+d)+9(n+d)2
a3-9ax4-16
(-2xy)2•(-x2y)3(a+3b)(a+b)
3x(x-4)(x-2)(x+2y-1)2
30.3×
29.75032
(5a)2•b2•2a2b2(x4y2-4x2y2z3)÷
2(x+2)2+(3x-3)(3x+1)3(y+z)2+(4y-z)(2y-z)
49x2-100y2(d-m)(6x+6y)+(d-m)(x-y)
a2-16ay+64y29-30(m-a)+25(m-a)2
d3-81dx4-1
(2xy3)2•(xy)2(a-b)(a-4b)
-3x(x+4)(x-3)(5x+4y-2)2
29.78992
(7a)2•b4÷
10a2b(8x4y3-x4y4z3)•xy
3(x+2)2-(2x-3)(3x-5)4(y-z)2+(4y+z)(4y+z)
100x2-y2(c-m)(x+y)+(c-m)(5x+6y)
a2-18ay+81y236-84(a+q)+49(a+q)2
c3-25c16x4-256
(3xy3)3•(-x3y2)3(6a-b)(a-b)
-2x(x-3)(x+4)(x-y-4)2
30.2×
29.82982
(2a)3•b4•18ab2(x2y2-7x2y4z3)÷
xy2
(x+4)2-(2x+1)(4x-5)4(y-z)2-(2y-z)(3y-z)
x2-4y2(n+c)(4x-y)+(n+c)(x-y)
a2-8ax+16x24+28(n-c)+49(n-c)2
c3-25c81x4-81
(2x2y3)2•(x2y3)2(a-6b)(6a+2b)
-3x(x-3)(x+1)(x-y+2)2
0.649972
(5a)2•b3•18ab(5x4y3-x2y4z2)•5x2y
2(x-3)2-(3x-5)(2x-5)(y+z)2+(4y+z)(2y+z)
x2-y2(p-a)(6x-y)-(p-a)(x+4y)
a2+14an+49n225+40(m+b)+16(m+b)2
a3-9ax4-81
(-3xy)2•(-x2y2)2(2a+6b)(4a+6b)
3x(x+1)(x-1)(4x-5y+4)2
10.3×
9.73032
(6a)3•b4•10ab(3x3y3-x3y2z3)÷
x2y
4(x-4)2-(3x-4)(2x-4)(y+z)2-(2y+z)(2y+z)
64x2-64y2(n+a)(4x+4y)+(n+a)(5x-3y)
a2-4am+4m216+48(b-n)+36(b-n)2
c3-36cx4-81
(-3x3y3)2•(x2y)2(2a-b)(a-b)
3x(x-5)(x+4)(x-4y-3)2
3.1×
2.989972
(2a)3•b4÷
18a2b(x2y3-x2y4z2)•x2y
(x-2)2+(3x-2)(2x+1)(y-z)2+(2y-z)(4y+z)
25x2-y2(q+a)(4x+y)-(q+a)(5x-2y)
a2+18ay+81y236-48(c+q)+16(c+q)2
c3-25cx4-1
(-2xy2)3•(-x3y3)3(6a-3b)(a+b)
-2x(x+5)(x+5)(3x-y+3)2
40.1×
39.970012
(5a)3•b4•2a2b(7x2y2+2x2y4z3)•5xy2
(x-3)2+(2x-3)(4x-3)(y-z)2+(2y+z)(2y+z)
49x2-16y2(q+b)(4x-y)-(q+b)(4x-6y)
a2-6ay+9y29+18(q-c)+9(q-c)2
d3-25dx4-16
(-3xy2)2•(-xy)2(a+5b)(6a+6b)
2x(x-2)(x+2)(x-y-2)2
6.4×
5.649952
(7a)2•b2•16a2b2(x2y2-x3y3z2)•xy2
4(x-3)2-(4x+3)(4x+3)(y-z)2+(3y-z)(2y+z)
4x2-y2(d-p)(x+3y)+(d-p)(x-2y)
a2-14ab+49b236+84(p-d)+49(p-d)2
a3-81a81x4-256
(-3x2y2)2•(x3y3)3(4a+b)(4a-b)
3x(x-4)(x+2)(x-y+3)2
59.780022
(6a)2•b2•18ab2(4x3y2+x2y2z4)÷
7xy2
2(x-4)2+(4x+2)(2x+4)(y+z)2-(3y+z)(4y+z)
x2-25y2(b+p)(5x+y)+(b+p)(x+5y)
a2-10am+25m24-28(m+d)+49(m+d)2
b3-4b81x4-16
(2x3y3)2•(x2y)3(6a+3b)(6a+6b)
-2x(x+1)(x+3)(6x-y+3)2
5.4×
4.62042
(4a)2•b4•14ab(2x2y2-5x2y4z4)÷
(x+4)2+(4x+5)(2x+5)2(y+z)2+(2y-z)(4y+z)
x2-y2(m+d)(x+2y)+(m+d)(x-y)
a2-8ax+16x29+24(p-d)+16(p-d)2
b3-16bx4-1
(2x2y2)3•(x3y3)2(5a-b)(a+6b)
3x(x+4)(x+1)(x+2y-3)2
29.870032
(2a)3•b3•8a2b2(5x4y2-3x4y4z4)÷
8xy2
(x-1)2-(3x-5)(2x+3)(y-z)2-(4y+z)(3y-z)
x2-y2(b-p)(x+y)+(b-p)(x+2y)
a2+4am+4m24+24(n+d)+36(n+d)2
a3-4a16x4-16
(2xy2)3•(-x2y2)2(2a-b)(4a-b)
3x(x+3)(x-5)(4x-y+3)2
10.1×
9.969992
(4a)3•b4•8a2b2(6x2y3-6x3y3z2)÷
3(x+1)2-(4x-5)(3x-3)(y-z)2-(2y+z)(4y-z)
x2-y2(n+d)(5x+6y)-(n+d)(2x+6y)
a2-8an+16n225+60(b+p)+36(b+p)2
b3-64bx4-81
(-2xy)3•(-xy)2(2a+3b)(a+2b)
-3x(x+2)(x+3)(6x-y+3)2
7.4×
6.69052
(4a)2•b4÷
12ab2(x3y2-x2y3z2)•x2y2
(x-2)2-(2x+5)(2x-5)2(y-z)2+(3y+z)(4y+z)
x2-y2(p+c)(x-y)+(p+c)(x-2y)
a2+18ax+81x24+24(p-d)+36(p-d)2
a3-49a81x4-256
(-2xy3)3•(-xy2)2(a-b)(3a-4b)
2x(x-2)(x+5)(x-y-2)2
5.66022
(8a)2•b4•12ab2(8x2y4-x3y3z3)÷
(x+1)2-(4x+4)(2x-5)3(y+z)2-(2y-z)(2y-z)
x2-y2(c-m)(4x-y)+(c-m)(x-2y)
a2+6am+9m24+8(q-a)+4(q-a)2
c3-49cx4-1
(-2x2y)3•(xy2)2(a-4b)(6a-6b)
-2x(x-3)(x+4)(5x-y-4)2
30.4×
29.65972
(7a)3•b2÷
14a2b(6x2y3+x4y3z4)÷
9x2y
(x-4)2+(4x-2)(2x+1)(y-z)2+(2y-z)(4y+z)
x2-y2(m-d)(5x+4y)+(m-d)(x-y)
a2-12ay+36y216-56(q+d)+49(q+d)2
d3-36d16x4-81
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