人教版初二数学上册整式的乘法和因式分解练习题大全82文档格式.docx
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-3x(x-3)(x+5)(3x-y+3)2
8.2×
7.84962
(4a)3•b3•16a2b2(x4y4+5x2y4z4)÷
xy2
2(x+1)2+(3x+1)(2x-1)(y-z)2-(3y+z)(3y-z)
x2-y2(d+p)(x-4y)-(d+p)(x-y)
a2+14ax+49x216-16(d+p)+4(d+p)2
c3-100c16x4-16
(3xy3)3•(-x2y3)3(4a+b)(5a-b)
3x(x+5)(x-4)(5x-5y+2)2
10.4×
9.670012
(8a)2•b2÷
18a2b2(2x3y4-9x3y2z2)•xy2
2(x+2)2+(4x+5)(3x+1)4(y+z)2+(3y-z)(3y+z)
9x2-25y2(m+d)(x+y)+(m+d)(x-y)
a2-16ab+64b225-30(d-n)+9(d-n)2
d3-100dx4-1
(-3xy)2•(xy)3(3a+b)(a+b)
-3x(x-5)(x+1)(x-6y+2)2
40.2×
39.88032
(5a)3•b2•18a2b(8x4y4-2x4y2z2)÷
x2y
2(x+2)2-(3x+3)(2x+4)3(y+z)2+(2y+z)(2y-z)
x2-64y2(q+d)(3x-y)+(q+d)(x-y)
a2+14an+49n225+20(d-p)+4(d-p)2
d3-81dx4-16
(3x3y)3•(xy3)3(a+b)(6a-b)
2x(x+3)(x+3)(5x-y+1)2
6.2×
5.88022
(4a)3•b4•12a2b2(x4y2-x2y4z2)•7x2y2
(x-4)2-(2x+3)(3x-3)2(y+z)2-(4y-z)(2y-z)
81x2-25y2(m+b)(x-y)+(m+b)(6x-y)
a2+16am+64m29+30(q-d)+25(q-d)2
a3-9ax4-256
(-2xy2)2•(x2y3)3(a-b)(a-5b)
3x(x+2)(x-5)(6x-y+2)2
50.2×
49.870022
(3a)2•b3•6a2b2(x4y2+x2y4z4)÷
(x+2)2-(2x+1)(2x+5)3(y-z)2-(4y-z)(2y+z)
x2-y2(n+c)(2x+y)-(n+c)(x-y)
a2-12ay+36y24+12(m+d)+9(m+d)2
d3-36dx4-81
(2x2y)3•(-x2y)3(a-4b)(a+6b)
3x(x+4)(x+3)(4x-y+4)2
80.2×
79.81972
(5a)2•b4÷
18ab2(x4y3-5x2y3z4)•5xy
4(x-1)2-(4x+1)(3x-5)4(y+z)2-(4y+z)(2y-z)
x2-9y2(m+d)(4x+4y)+(m+d)(3x-6y)
a2-14ab+49b24-28(q-d)+49(q-d)2
b3-16bx4-256
(-2xy)3•(x3y3)2(a-b)(4a-4b)
-2x(x+4)(x+4)(x+6y+3)2
2.4×
1.66012
(4a)3•b4•16a2b(7x4y4-x2y3z4)÷
x2y2
(x+1)2+(2x-4)(2x+3)(y-z)2+(2y+z)(4y-z)
x2-y2(q+b)(x-y)+(q+b)(2x-y)
a2-10ab+25b216-16(n+c)+4(n+c)2
a3-64ax4-256
(2x2y3)2•(-xy2)3(3a+4b)(2a+b)
-2x(x-3)(x+3)(x-5y-2)2
4.3×
3.780002
(3a)2•b4•6ab2(7x2y3-x3y2z4)•6x2y
(x-1)2+(2x-4)(3x+1)3(y+z)2+(3y-z)(2y-z)
x2-y2(d-n)(x+y)+(d-n)(x+3y)
a2+6ay+9y225-60(q-c)+36(q-c)2
a3-25ax4-81
(2x2y3)3•(x3y)2(3a-5b)(5a+b)
-2x(x+4)(x-2)(4x-y-4)2
9.62962
(8a)2•b4÷
2a2b2(2x4y3-3x2y4z2)÷
9xy2
4(x-2)2+(3x-1)(2x-5)3(y+z)2-(2y-z)(3y+z)
49x2-y2(c+n)(x-6y)-(c+n)(x+5y)
a2-6an+9n225-70(q+d)+49(q+d)2
c3-9cx4-16
(-3xy)2•(x2y3)3(a-2b)(3a+b)
3x(x-5)(x-4)(x-3y+3)2
30.3×
29.770032
(7a)2•b3•18a2b(2x2y2-x2y2z3)÷
6x2y
2(x+1)2+(4x-2)(2x+1)4(y-z)2-(3y-z)(4y-z)
36x2-y2(p-b)(2x-y)+(p-b)(x+3y)
a2+16am+64m225+40(a-n)+16(a-n)2
c3-81cx4-81
(-3xy3)3•(-x2y)3(a-6b)(a+3b)
2x(x+1)(x-1)(x-4y-3)2
30.1×
29.939952
(5a)3•b3÷
2ab2(8x3y2-2x2y2z4)•8xy2
(x-1)2-(2x+5)(2x+5)2(y-z)2-(4y+z)(2y+z)
x2-36y2(b+p)(x-y)+(b+p)(x-y)
a2-16an+64n225+70(n+b)+49(n+b)2
b3-49bx4-256
(3x2y3)3•(-xy3)3(a+2b)(2a-3b)
3x(x-3)(x+1)(x+5y+3)2
60.1×
59.940002
(2a)3•b3•6a2b2(8x2y4-x2y3z3)•xy
4(x-2)2-(2x-4)(4x+1)(y+z)2+(4y+z)(3y+z)
x2-4y2(n+b)(x-y)-(n+b)(6x+y)
a2+6ab+9b24-16(n+b)+16(n+b)2
(-2x2y)2•(x2y)2(a-4b)(a+b)
-2x(x+5)(x-4)(6x+2y+4)2
29.97002
(7a)3•b3•18ab2(8x3y3-x3y3z3)÷
3(x+1)2+(3x+3)(4x+5)(y-z)2-(4y+z)(4y-z)
x2-4y2(n+a)(x-y)+(n+a)(x-y)
a2-6an+9n24-8(b+p)+4(b+p)2
a3-100a81x4-16
(2xy2)3•(x2y)3(4a-b)(4a+5b)
-3x(x+2)(x+3)(6x-4y-3)2
70.4×
69.62032
(2a)3•b2•18ab2(3x3y2-9x2y3z2)•xy
(x+1)2+(4x-3)(4x+1)(y-z)2+(2y+z)(2y+z)
100x2-25y2(a+n)(3x-5y)+(a+n)(4x-2y)
a2-10am+25m225-50(a+p)+25(a+p)2
a3-49a81x4-81
(-2x2y2)2•(xy2)2(a+2b)(a-b)
2x(x+2)(x+3)(x+6y+2)2
8.3×
7.76962
(3a)2•b3•2ab2(x2y2+x3y2z2)•6x2y2
(x+2)2-(4x+1)(2x-4)(y-z)2-(3y+z)(2y-z)
25x2-y2(q+b)(6x-y)+(q+b)(4x+y)
a2-8ab+16b216+32(q+a)+16(q+a)2
(3x2y2)3•(x3y)3(a-4b)(5a+5b)
3x(x+2)(x+3)(x+6y+1)2
6.4×
5.61982
(5a)3•b2÷
4a2b(x2y3+x3y3z3)÷
xy
4(x+1)2+(2x-4)(4x-1)(y+z)2-(2y+z)(4y-z)
x2-y2(a+m)(x-5y)-(a+m)(3x+3y)
a2+8am+16m24+12(a+n)+9(a+n)2
d3-4dx4-16
(3x3y)3•(-x2y3)2(a+5b)(a+3b)
-3x(x-1)(x-5)(x-y+4)2
7.2×
6.83952
(4a)3•b2÷
10a2b(4x4y3-3x2y2z4)•x2y
4(x-2)2+(3x-3)(3x-4)(y-z)2-(2y-z)(2y+z)
25x2-y2(b+q)(x-5y)-(b+q)(4x-y)
a2-6ay+9y236+84(p-b)+49(p-b)2
a3-100ax4-1
(-2x3y3)2•(x2y)3(a+b)(4a+b)
2x(x-2)(x-2)(x+6y+4)2
9.660022
(7a)2•b3•12a2b(7x4y3+5x3y3z4)÷
2xy
(x-3)2+(3x-5)(4x+3)(y-z)2+(4y+z)(2y+z)
x2-y2(q+b)(3x-y)-(q+b)(6x+y)
a2-4ax+4x29-42(a-q)+49(a-q)2
a3-81a16x4-1
(2x3y2)2•(-xy)2(3a-b)(a+b)
2x(x-3)(x-3)(4x-6y+1)2
2.3×
1.7962
(2a)3•b3÷
16ab2(6x2y2-6x3y2z4)•xy2
4(x+3)2+(4x-5)(2x-4)(y-z)2+(3y-z)(4y-z)
x2-9y2(c-n)(x+y)+(c-n)(5x+6y)
a2-20an+100n225-30(n+c)+9(n+c)2
c3-16cx4-1
(-3x3y)3•(-xy2)2(2a-6b)(5a+b)
3x(x+1)(x+3)(5x-6y+1)2
29.749992
(2a)3•b3•14a2b2(x3y4-2x4y4z2)÷
3(x+2)2-(3x-1)(2x-1)(y-z)2+(2y-z)(2y-z)
x2-y2(a-q)(x+y)-(a-q)(x+4y)
a2-8an+16n29-24(m-c)+16(m-c)2
c3-4cx4-1
(-3x3y)3•(xy)2(5a-b)(5a+b)
-2x(x-2)(x+5)(5x+2y+1)2
79.8100012
(9a)3•b2÷
4a2b2(7x2y3-x3y2z4)•6x2y
4(x-1)2+(4x-3)(2x+3)2(y-z)2+(4y+z)(2y-z)
x2-y2(p+c)(6x+4y)-(p+c)(x+y)
a2+20ax+100x24-8(c+n)+4(c+n)2
c3-9cx4-1
(3x2y)2•(xy2)3(a-3b)(a-5b)
3x(x-5)(x-4)(x+6y-1)2
8.1×
7.97032
(7a)2•b4÷
16a2b(5x3y2-9x2y3z3)÷
3x2y
(x-2)2-(4x+3)(3x-1)2(y+z)2+(3y+z)(2y-z)
16x2-49y2(n+a)(x-y)-(n+a)(6x+y)
a2-10am+25m225-50(n+c)+25(n+c)2
a3-100a16x4-16
(2x2y3)3•(xy)2(6a-6b)(3a+b)
2x(x+5)(x-5)(3x+3y-2)2
40.4×
39.68032
(9a)2•b2÷
18a2b(x3y3+x2y4z2)•x2y
(x+4)2-(4x-1)(2x-5)3(y-z)2-(4y-z)(2y-z)
4x2-y2(d-m)(x+y)-(d-m)(x-5y)
a2+10ax+25x29-36(d-p)+36(d-p)2
a3-81ax4-16