人教版初二数学上册整式的乘法和因式分解练习题大全56Word格式.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56Word格式.docx
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b3-100bx4-16
(2xy3)2•(xy3)2(a-b)(a-2b)
2x(x-4)(x-3)(x-y+3)2
2.4×
1.67992
(3a)3•b3•2a2b(x3y3-x3y2z4)÷
x2y
4(x-3)2-(2x+5)(4x-2)(y+z)2+(3y+z)(3y+z)
49x2-y2(n+d)(x+y)-(n+d)(x+6y)
a2-18ax+81x24-12(c-p)+9(c-p)2
a3-9ax4-256
(3x3y3)3•(xy)3(a+b)(4a-2b)
2x(x+3)(x+1)(5x+y+4)2
6.1×
5.989952
(9a)2•b4÷
14a2b2(2x4y3+5x3y4z4)•xy2
2(x+3)2+(3x+1)(4x-1)(y-z)2-(3y+z)(2y+z)
x2-100y2(m+d)(x-y)+(m+d)(2x+y)
a2-16ay+64y24-16(c-p)+16(c-p)2
c3-4cx4-16
(-2x3y3)3•(x2y2)3(6a+3b)(2a-4b)
2x(x-2)(x-2)(x-y-4)2
59.62982
(2a)2•b4÷
4ab2(4x3y3-9x3y3z2)•9x2y
(x+4)2+(3x+5)(4x-1)3(y+z)2-(3y+z)(4y-z)
9x2-y2(c-m)(6x+3y)+(c-m)(x+4y)
a2+20ax+100x24+12(p+c)+9(p+c)2
a3-81ax4-256
(-2x3y)2•(-x2y2)2(a-5b)(3a+6b)
-2x(x-5)(x-2)(4x+y-1)2
3.4×
2.629952
(3a)3•b2•20a2b(x4y4-9x4y3z4)•8x2y
2(x+1)2+(2x+1)(4x+5)2(y+z)2+(2y-z)(4y+z)
x2-16y2(b+q)(4x-y)+(b+q)(x+y)
a2+6ay+9y216-24(n-b)+9(n-b)2
c3-36cx4-16
(3xy)3•(-xy)3(5a-2b)(5a-b)
-3x(x-4)(x-1)(6x+4y+2)2
80.4×
79.62032
(3a)3•b3÷
8a2b2(6x3y2+3x2y3z2)÷
6x2y
(x+3)2-(3x-4)(4x-4)(y-z)2+(3y+z)(3y+z)
25x2-49y2(d-p)(5x-y)+(d-p)(x-y)
a2+6ax+9x29+36(d-n)+36(d-n)2
a3-81ax4-16
(2x3y3)2•(-xy)3(a+4b)(6a+4b)
-2x(x+5)(x+3)(4x+y+1)2
5.1×
4.940002
(2a)2•b4•4ab(5x4y3-x3y4z3)÷
4x2y
2(x+1)2-(2x-3)(4x-4)(y+z)2+(2y-z)(4y-z)
x2-y2(q+b)(5x+y)-(q+b)(x+y)
a2-12ay+36y225-30(m+d)+9(m+d)2
d3-49d81x4-1
(-2xy2)2•(-xy)2(a-5b)(a-3b)
3x(x-5)(x-2)(2x+y-1)2
70.3×
69.790022
(4a)2•b4÷
6ab(x3y3+5x2y2z2)÷
xy2
(x-2)2-(3x+2)(2x+1)2(y-z)2+(2y+z)(3y+z)
49x2-y2(m+a)(4x-5y)-(m+a)(x-y)
a2+14an+49n24+24(p-c)+36(p-c)2
d3-9dx4-1
(3x3y)3•(x2y)3(a-b)(5a+3b)
-2x(x+5)(x-3)(5x-y+3)2
4.4×
3.68052
(2a)3•b2•6a2b(9x4y3+6x2y2z3)÷
4(x+1)2+(2x-4)(4x-1)4(y-z)2+(2y-z)(4y-z)
x2-81y2(a+q)(x-y)-(a+q)(6x+6y)
a2-8ay+16y29-12(m+a)+4(m+a)2
a3-16a81x4-256
(2x2y2)3•(-x3y)3(2a-b)(a-b)
-3x(x-3)(x-4)(x-4y-1)2
80.2×
79.8100052
18a2b(5x4y4+2x4y2z3)•7x2y
3(x+1)2+(2x-5)(4x-2)(y+z)2+(4y+z)(4y-z)
x2-y2(d-m)(3x+y)-(d-m)(x+3y)
a2+6ay+9y225-70(a-p)+49(a-p)2
c3-9c16x4-81
(-2x2y3)3•(x3y)3(a+5b)(4a-b)
2x(x-3)(x+5)(x+y+4)2
3.699982
(8a)3•b3÷
4ab(3x3y3+2x3y3z4)÷
7x2y
4(x-3)2-(4x-5)(3x+5)(y-z)2-(2y-z)(2y+z)
x2-y2(b-m)(x+5y)+(b-m)(x+y)
a2+16ax+64x216-40(b+m)+25(b+m)2
d3-100d81x4-256
(-3x3y)2•(x3y)3(a-b)(3a-b)
-3x(x+5)(x-3)(x+6y-4)2
5.3×
4.790022
(6a)3•b3÷
20ab2(x2y3+9x3y4z2)÷
(x+1)2+(2x-3)(3x-4)2(y+z)2-(4y-z)(4y-z)
x2-100y2(n-a)(2x+y)-(n-a)(x+y)
a2-8ax+16x29+24(m-a)+16(m-a)2
a3-49ax4-16
(-3x2y)3•(-xy)2(a+2b)(a+4b)
-3x(x+3)(x-4)(6x+3y+2)2
8.4×
7.6100052
(3a)3•b2÷
20a2b(x3y4-x3y2z3)÷
3x2y2
(x+2)2-(4x-2)(4x+2)4(y+z)2+(2y-z)(3y-z)
81x2-64y2(a+m)(5x+y)-(a+m)(x-y)
a2-10ab+25b236+72(n-d)+36(n-d)2
d3-16dx4-16
(-2xy)3•(-xy2)2(a+6b)(a-b)
2x(x+4)(x-5)(x-y-2)2
4.729982
(3a)3•b2•8ab2(4x3y2+x2y4z4)÷
4x2y2
(x-1)2-(3x-5)(4x-3)4(y-z)2-(2y+z)(3y-z)
x2-y2(a+n)(x-y)-(a+n)(5x+y)
a2+14ax+49x29-42(d-p)+49(d-p)2
d3-9dx4-256
(2x2y2)3•(xy2)3(a+b)(3a-6b)
2x(x-4)(x+4)(5x-2y-2)2
4.940022
(9a)3•b4÷
6a2b(x2y3+x4y2z3)÷
xy
(x-3)2+(4x-1)(3x-3)4(y-z)2+(3y-z)(3y-z)
x2-9y2(b+m)(x-4y)+(b+m)(2x+y)
a2+12an+36n216-56(d+p)+49(d+p)2
b3-64bx4-256
(2xy2)3•(x3y)3(a-3b)(2a+5b)
-2x(x+2)(x+5)(2x+2y-1)2
90.2×
89.85992
(3a)2•b2÷
10a2b(2x3y2-9x4y3z4)÷
x2y2
(x+2)2-(4x-3)(2x-3)(y+z)2+(3y+z)(4y-z)
x2-y2(a-p)(4x+2y)-(a-p)(x-5y)
a2+18am+81m24+12(m+c)+9(m+c)2
d3-16d81x4-16
(-2x2y)2•(x2y2)3(3a-6b)(a-b)
3x(x+4)(x+2)(6x+3y+1)2
40.1×
39.95952
(8a)3•b2÷
6a2b(x2y3+x3y3z3)÷
9x2y
4(x-4)2+(3x+4)(2x+3)4(y+z)2+(4y-z)(2y-z)
x2-36y2(a+n)(5x+y)-(a+n)(6x-2y)
a2+16ab+64b236+84(p-d)+49(p-d)2
b3-25bx4-1
(3xy2)3•(x2y)3(a-b)(a-4b)
3x(x-2)(x-1)(5x+y-3)2
1.2×
0.86962
(5a)3•b4•20a2b(x3y3+8x3y2z4)•2x2y2
(x-4)2-(3x-2)(2x-1)(y-z)2+(4y-z)(4y+z)
16x2-16y2(b-n)(4x+y)-(b-n)(2x+y)
a2+14ay+49y29+18(q+c)+9(q+c)2
d3-49dx4-256
(3x2y2)2•(xy2)2(a+6b)(a-b)
-2x(x-5)(x-1)(3x-y+1)2
10.4×
9.699992
(3a)2•b4•8ab2(x3y2-x4y2z3)÷
(x+4)2-(3x-4)(4x+4)(y-z)2+(2y-z)(2y+z)
64x2-y2(d+p)(x-y)-(d+p)(3x-2y)
a2-4ax+4x24+16(b-p)+16(b-p)2
b3-4bx4-16
(2xy2)3•(-xy3)3(a-b)(3a+3b)
-3x(x-4)(x+2)(x+y-3)2
7.64012
(6a)3•b2÷
8a2b(6x3y3+9x2y3z3)÷
7x2y2
3(x-4)2+(4x-2)(2x-1)3(y+z)2-(2y+z)(4y+z)
25x2-100y2(a-n)(x-y)-(a-n)(2x-y)
a2+4ay+4y24-8(c-n)+4(c-n)2
b3-36bx4-81
(-2x2y)3•(x3y)3(a+b)(4a+2b)
-3x(x-3)(x+1)(x+y-2)2
2.3×
1.79022
(2a)2•b2•18a2b(x4y2-x3y3z3)÷
2(x+2)2+(3x-2)(3x+1)(y-z)2+(3y-z)(2y-z)
x2-y2(q-c)(5x-y)+(q-c)(x+y)
a2-14ab+49b236+36(a+n)+9(a+n)2
d3-100dx4-16
(-3x3y)3•(x3y2)3(a-b)(a-2b)
-3x(x+5)(x-2)(5x+y+3)2
6.4×
5.67022
(9a)2•b3÷
10ab(x3y3-x2y2z3)•x2y
(x+1)2-(3x-4)(4x+3)4(y-z)2-(4y-z)(4y-z)
x2-25y2(b+n)(3x+6y)+(b+n)(x+5y)
a2-20ay+100y216+32(a+p)+16(a+p)2
d3-25dx4-1
(-3xy2)2•(-x2y)2(a+5b)(a-3b)
3x(x-1)(x+2)(x+4y-2)2
4.1×
3.92992
6ab2(5x3y2-3x4y4z4)÷
3(x+1)2-(4x-4)(3x-2)(y+z)2+(2y+z)(4y-z)
x2-y2(a-n)(2x-y)+(a-n)(x-y)
a2-14an+49n225+50(n-d)+25(n-d)2
d3-4d81x4-1
(-2xy)2•(-x2y3)2(a-5b)(3a-b)
3x(x-4)(x-5)(5x-y+2)2
2.64052
(2a)2•b2÷
8a2b2(x3y4-2x2y4z3)÷
(x+4)2-(4x-5)(2x+4)2(y-z)2+(3y-z)(4y-z)
x2-y2(m+b)(x-4y)-(m+b)(5x+2y)
a2-14ay+49y236-72(a+m)+36(a+m)2
b3-16b81x4-1
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