人教版初二数学上册整式的乘法和因式分解练习题大全86Word格式文档下载.docx
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人教版初二数学上册整式的乘法和因式分解练习题大全86Word格式文档下载.docx
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(3x3y2)2•(x3y3)3(a+3b)(a-2b)
2x(x+3)(x+4)(2x+y+4)2
3.1×
2.96052
2a2b(5x4y2-2x3y3z4)•9x2y2
3(x-2)2+(3x+3)(3x+1)(y-z)2+(4y+z)(3y+z)
x2-y2(a+m)(x-y)-(a+m)(x+5y)
a2-4ay+4y24-16(q-a)+16(q-a)2
a3-49ax4-81
(-2xy)3•(xy2)2(5a-6b)(a-2b)
3x(x-4)(x-3)(x-6y+2)2
80.4×
79.65962
(9a)2•b3÷
14a2b2(x2y3-x4y2z2)÷
9x2y2
3(x+2)2+(4x-4)(3x+1)3(y+z)2+(3y-z)(4y-z)
81x2-25y2(d+q)(3x-5y)-(d+q)(x+y)
a2-8ax+16x24+24(q-b)+36(q-b)2
a3-9ax4-16
(-3xy3)3•(-x3y3)2(a-b)(4a+b)
-3x(x-1)(x-1)(x-y+3)2
7.4×
6.61952
(2a)2•b2÷
4a2b2(x2y2+4x3y3z2)•xy
(x-3)2-(4x-4)(3x+1)(y-z)2-(2y-z)(2y-z)
49x2-64y2(m-d)(x+3y)+(m-d)(x-y)
a2+14ay+49y24+24(n-a)+36(n-a)2
c3-36cx4-81
(2x2y2)3•(-xy)3(a-b)(a+6b)
-2x(x-5)(x+5)(x+4y+2)2
50.4×
49.63012
(4a)2•b4÷
20ab(8x3y2+2x4y3z2)÷
xy2
(x+2)2+(3x+4)(2x+1)3(y-z)2-(2y+z)(2y+z)
4x2-25y2(p+b)(x-5y)-(p+b)(x+2y)
a2-14am+49m24+12(d+n)+9(d+n)2
a3-4ax4-256
(-2xy)2•(-xy)2(4a+5b)(5a+b)
2x(x+2)(x+5)(x-y-3)2
79.620052
(2a)3•b3÷
14ab(x3y4-x2y4z4)÷
(x+1)2-(4x+4)(3x-5)(y+z)2-(2y-z)(4y-z)
x2-36y2(n+b)(2x+5y)-(n+b)(x+5y)
a2-18ax+81x29-24(d-p)+16(d-p)2
d3-25dx4-16
(2xy3)3•(-x2y)3(a+b)(a-b)
3x(x-3)(x-3)(4x-6y+3)2
8.3×
7.779952
(8a)3•b2•6a2b2(x4y2-6x4y3z4)•7x2y2
(x+1)2-(3x-4)(3x-3)(y+z)2-(3y-z)(3y-z)
x2-y2(q+c)(2x-y)-(q+c)(6x+3y)
a2+4an+4n225-50(a-n)+25(a-n)2
b3-9bx4-81
(2xy)2•(x2y)3(a+2b)(6a+5b)
2x(x+2)(x+2)(x+y-4)2
40.4×
39.68952
(7a)3•b2÷
12ab(x3y2-6x3y3z4)÷
5x2y2
(x+3)2-(2x+4)(4x+4)4(y-z)2-(4y-z)(3y+z)
64x2-y2(n+a)(4x+5y)+(n+a)(3x-6y)
a2-6ax+9x24+28(m-c)+49(m-c)2
b3-25bx4-81
(-2xy)2•(-xy2)3(a+4b)(2a+b)
2x(x-3)(x+2)(x-y+4)2
60.2×
59.84972
16a2b2(x2y3+x4y2z2)÷
x2y
2(x-2)2+(3x-1)(4x+4)2(y-z)2+(4y+z)(3y-z)
x2-y2(c+q)(x+6y)-(c+q)(x-3y)
a2+4am+4m236+24(m+a)+4(m+a)2
d3-100dx4-81
(3x2y)3•(-xy)3(4a+b)(2a-b)
3x(x+5)(x+1)(4x+y+2)2
6.2×
5.830042
(4a)3•b2÷
4ab(3x3y3-x3y2z4)•x2y2
(x+3)2-(3x+4)(3x-4)4(y+z)2-(3y-z)(3y+z)
9x2-9y2(m+d)(2x-2y)-(m+d)(x+y)
a2-8ab+16b29+12(q+a)+4(q+a)2
c3-36cx4-1
(-2x2y3)3•(-x2y)3(6a+b)(a+b)
-3x(x-2)(x-5)(x+y+1)2
10.1×
9.970052
(7a)2•b3÷
20a2b2(6x4y4+x2y4z4)•3xy2
(x-2)2+(3x+1)(2x-1)3(y-z)2-(4y+z)(4y+z)
x2-36y2(a+p)(6x+2y)-(a+p)(2x-y)
a2-4ay+4y236+60(d-m)+25(d-m)2
d3-9d81x4-16
(2x3y2)3•(-xy)2(a-2b)(5a+b)
2x(x-5)(x+4)(2x+y+3)2
9.3×
8.78982
(6a)3•b3÷
10ab(6x3y2-x2y4z3)÷
6xy
4(x-1)2+(2x-3)(2x+2)3(y+z)2-(2y+z)(3y-z)
4x2-y2(n-d)(4x-y)-(n-d)(x+y)
a2+12am+36m225-30(p+b)+9(p+b)2
d3-4dx4-81
(3xy)3•(-xy)2(a-b)(4a-6b)
2x(x-4)(x+3)(5x-6y-1)2
2.2×
1.850022
(3a)3•b2÷
18a2b2(4x3y2+x2y2z4)÷
x2y2
(x-1)2+(3x+5)(2x+2)4(y-z)2-(3y-z)(2y+z)
81x2-64y2(p+d)(6x-2y)+(p+d)(x-5y)
a2-6ab+9b29+42(a-q)+49(a-q)2
c3-4c81x4-16
(-3x2y2)2•(-xy2)3(a-b)(6a-3b)
3x(x-4)(x+2)(x+3y-3)2
9.4×
8.69032
(3a)2•b3÷
12a2b2(x3y3+3x2y3z2)÷
7x2y2
(x+3)2-(4x+4)(4x-5)(y-z)2+(2y-z)(3y+z)
x2-y2(n+d)(3x+y)-(n+d)(x-y)
a2-12ay+36y29+24(m+a)+16(m+a)2
b3-25bx4-256
(-3x2y2)3•(xy3)3(a+4b)(2a-2b)
2x(x+3)(x-5)(x+y-4)2
2.1×
1.910022
6ab(x4y4-2x4y4z2)÷
8x2y
(x+4)2-(2x-2)(3x+4)(y-z)2+(4y-z)(2y+z)
25x2-y2(a-p)(5x+5y)-(a-p)(2x+3y)
a2-20ax+100x24+24(q-d)+36(q-d)2
a3-25ax4-16
(3xy2)2•(-xy)3(4a-3b)(a+6b)
-2x(x-2)(x-3)(2x-y+1)2
4.4×
3.640032
(4a)3•b3÷
20a2b2(7x2y3+x2y3z2)•6xy2
3(x+3)2+(2x-2)(2x-1)(y+z)2+(3y-z)(4y+z)
x2-81y2(d-p)(3x+3y)-(d-p)(6x-y)
a2+8an+16n236-48(a-q)+16(a-q)2
c3-4cx4-16
(-2x3y3)3•(-x3y3)2(3a-6b)(a-5b)
-2x(x+3)(x-5)(5x-y-3)2
50.1×
49.99952
(5a)2•b2•8a2b2(9x3y3-x2y3z4)•xy2
4(x-1)2-(3x+2)(2x-2)2(y-z)2+(2y-z)(2y-z)
25x2-25y2(c-m)(x+y)+(c-m)(x-2y)
a2+14ab+49b225+30(b+q)+9(b+q)2
c3-25cx4-1
(2x2y)2•(-xy)3(2a+b)(3a+6b)
-2x(x+1)(x-4)(6x+y+1)2
60.4×
59.66022
(5a)3•b2•18a2b(x2y4-8x2y2z3)÷
(x+4)2+(2x+4)(2x+5)(y+z)2+(2y-z)(3y-z)
x2-y2(p-c)(x-6y)-(p-c)(4x-2y)
a2-18ay+81y29+24(d-p)+16(d-p)2
d3-16dx4-16
(-3x3y2)3•(x3y)2(a+b)(a+6b)
2x(x-3)(x+3)(x-y-4)2
70.2×
69.8952
(8a)3•b4•2a2b(9x2y3-5x2y2z3)÷
xy
2(x+4)2-(3x-2)(4x-4)(y+z)2-(3y-z)(4y+z)
25x2-81y2(c-p)(2x-2y)-(c-p)(x-y)
a2-8ay+16y29-42(p-a)+49(p-a)2
d3-16dx4-81
(-3x2y)2•(xy)3(a-3b)(6a-b)
3x(x+4)(x+4)(x+4y-4)2
10.2×
9.830022
(6a)3•b2•6a2b(x3y4+x3y4z2)•xy2
4(x-4)2+(2x+1)(4x-2)(y+z)2+(2y+z)(4y+z)
81x2-y2(b+m)(6x-y)-(b+m)(x+y)
a2+6an+9n225+70(d-p)+49(d-p)2
b3-100b81x4-256
(3x3y)2•(x2y)3(a-b)(2a-2b)
-2x(x+1)(x-3)(3x-y-2)2
80.1×
79.99962
(5a)3•b4÷
6ab(x3y2-x4y4z2)•7xy
2(x-3)2+(4x-1)(4x-4)2(y+z)2+(3y+z)(4y+z)
49x2-36y2(d-m)(5x+2y)-(d-m)(2x+6y)
a2-16am+64m24-24(q-c)+36(q-c)2
d3-64dx4-1
(2x3y)3•(-x3y)2(a-4b)(4a-b)
2x(x+4)(x-2)(4x-y+2)2
6.1×
5.919982
(6a)3•b4÷
16a2b(x4y3-2x2y3z4)•6x2y2
4(x+3)2+(3x-3)(2x-1)3(y+z)2-(3y-z)(4y-z)
64x2-y2(n-b)(x-y)+(n-b)(x-y)
a2+10an+25n29+36(d+p)+36(d+p)2
b3-49bx4-81
(2x3y)2•(x2y2)3(a+3b)(a-5b)
-3x(x-1)(x-1)(5x+y-3)2
40.3×
39.72992
(7a)3•b3•4ab2(8x4y2-x3y3z3)÷
3x2y
3(x-3)2-(3x+1)(3x-3)4(y-z)2+(2y-z)(3y-z)
x2-y2(a+m)(x-4y)-(a+m)(3x+y)
a2+20ab+100b216-56(m-d)+49(m-d)2
c3-4cx4-81
(-2xy2)3•(-x3y3)2(a+b)(a+2b)
2x(x+5)(x+3)(4x-y+4)2
3.4×
2.62002
(6a)2•b2÷
10ab(x3y4-x4y3z3)÷
5x2y
2(x-3)2+(4x-5)(4x+2)(y+z)2-(3y-z)(3y+z)
x2-y2(m-a)(5x-4y)+(m-a)(6x+y)
a2-18ab+81b29-30(b+p)+25(b+p)2
b3-4bx4-1
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