人教版初二数学上册整式的乘法和因式分解练习题大全90文档格式.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90文档格式.docx
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-3x(x+1)(x-1)(3x+y+2)2
20.1×
19.92962
(5a)3•b4•14a2b2(x2y2+x2y2z2)÷
x2y
3(x+1)2-(2x-5)(2x-2)(y+z)2+(2y+z)(2y+z)
x2-25y2(a-n)(3x+y)-(a-n)(x+3y)
a2-16am+64m24-20(d+m)+25(d+m)2
d3-9dx4-256
(2x3y)2•(x3y)2(2a-b)(5a-b)
3x(x+5)(x-1)(3x+4y-4)2
90.3×
89.730012
(7a)3•b4÷
4ab2(x2y2+x4y3z4)÷
8x2y
4(x-1)2-(4x-3)(2x+2)4(y-z)2+(4y+z)(2y+z)
64x2-4y2(b-m)(6x-6y)-(b-m)(5x+6y)
a2-10ax+25x225-40(q+b)+16(q+b)2
d3-64dx4-256
(3xy2)3•(-xy)2(3a+b)(a-6b)
2x(x-2)(x+5)(x-2y-1)2
70.1×
69.979952
(6a)3•b3÷
18a2b(x4y2+2x4y4z2)•x2y
4(x-2)2+(4x-2)(4x-1)2(y+z)2+(4y+z)(3y-z)
25x2-y2(b-m)(x-6y)+(b-m)(x+5y)
a2+6am+9m236-48(b-n)+16(b-n)2
a3-25ax4-256
(2xy)2•(-x2y2)2(6a+b)(5a-6b)
3x(x-1)(x-4)(5x-y-2)2
4.1×
3.960002
(7a)2•b2•18ab(x4y4-9x4y3z4)•x2y
(x-2)2+(4x-2)(3x+4)2(y-z)2+(4y-z)(4y+z)
9x2-49y2(m+a)(6x+y)-(m+a)(x+y)
a2-20ax+100x29+36(c+m)+36(c+m)2
a3-16ax4-16
(-3x2y2)2•(xy3)2(3a+b)(6a+b)
2x(x-2)(x-5)(x+5y+3)2
90.4×
89.630042
(7a)3•b3•4ab2(x2y4-x4y2z4)÷
7x2y2
2(x+2)2+(4x-4)(2x-4)(y+z)2+(4y+z)(3y-z)
x2-25y2(p-a)(3x+y)+(p-a)(x-4y)
a2+20ay+100y225-60(a-p)+36(a-p)2
a3-64ax4-81
(-3x3y3)3•(xy)2(6a+b)(a+b)
-3x(x+3)(x-3)(5x+3y+1)2
7.4×
6.62972
(5a)3•b4•10ab2(3x3y2-6x4y4z2)•x2y
4(x-1)2-(3x-5)(4x-2)2(y-z)2-(4y-z)(2y+z)
81x2-y2(b+n)(x-2y)+(b+n)(4x+6y)
a2-16am+64m24-8(a+p)+4(a+p)2
c3-16cx4-81
(-3x3y3)2•(xy2)3(2a-4b)(a-b)
-2x(x+2)(x+5)(4x-y+1)2
5.4×
4.66022
(2a)2•b3•16a2b(5x2y3+5x2y2z4)•x2y2
2(x-1)2+(4x+3)(3x+5)(y-z)2-(3y+z)(2y+z)
x2-81y2(p+c)(6x+3y)-(p+c)(6x-y)
a2+18an+81n29+12(d-q)+4(d-q)2
d3-64dx4-1
(3x3y)2•(-x3y3)2(a-b)(a+b)
2x(x-4)(x+4)(x-6y+3)2
70.2×
69.829952
(4a)2•b2÷
4ab2(x4y4+x2y4z2)•xy2
(x+3)2+(3x+4)(4x+4)(y+z)2+(3y-z)(2y+z)
x2-81y2(n+a)(2x+y)-(n+a)(5x-2y)
a2+6ay+9y216+24(q+d)+9(q+d)2
b3-100bx4-1
(-3x3y3)3•(xy)2(5a+3b)(6a+b)
2x(x-1)(x-5)(x-y+1)2
8.4×
7.639972
(6a)2•b3•8ab(9x2y4-x3y3z3)•5xy2
(x-1)2-(4x-1)(2x+3)3(y+z)2+(2y+z)(2y+z)
100x2-49y2(a-m)(3x+4y)+(a-m)(x+y)
a2+16am+64m236+48(p+c)+16(p+c)2
b3-49bx4-81
(3xy)2•(-x3y)2(a+4b)(a+2b)
3x(x-2)(x-5)(5x+5y-3)2
6.3×
5.720012
(9a)2•b2•10ab(3x3y3+x3y3z2)•x2y2
(x+2)2+(2x+2)(3x+3)(y+z)2-(3y+z)(2y+z)
16x2-16y2(m+c)(x+y)+(m+c)(x-y)
a2-20ax+100x216+16(n+b)+4(n+b)2
b3-4bx4-256
(3xy2)3•(xy3)2(a-2b)(4a+b)
3x(x-1)(x+3)(x+y+1)2
70.3×
69.740012
(8a)2•b4÷
16a2b(4x2y3+x3y2z4)•9x2y2
(x+2)2-(2x-4)(2x-5)(y+z)2-(2y+z)(2y+z)
x2-y2(m-c)(x+5y)+(m-c)(x-6y)
a2-20ab+100b225+40(n+b)+16(n+b)2
d3-49d16x4-256
(3x2y)3•(xy3)3(6a+b)(a-2b)
3x(x+1)(x-2)(x+y+3)2
30.4×
29.69972
(9a)3•b3•6ab2(x3y4+x3y2z3)•xy2
(x+1)2-(2x+5)(2x-1)(y-z)2+(2y-z)(2y-z)
16x2-y2(c+m)(5x+y)-(c+m)(x+4y)
a2+12ab+36b236-24(n-a)+4(n-a)2
b3-16bx4-256
(2xy)3•(-xy)3(3a-b)(2a+b)
-2x(x-5)(x+2)(5x-6y-4)2
8.1×
7.969952
(4a)3•b4•12ab(7x4y2-x4y2z3)÷
2xy
3(x+4)2+(3x-2)(4x+5)(y+z)2+(3y+z)(3y-z)
x2-64y2(d+p)(x+5y)-(d+p)(x-4y)
a2-12am+36m24+28(c-m)+49(c-m)2
d3-81d16x4-1
(3x2y)3•(-x3y3)2(a-b)(a+b)
-3x(x-3)(x-1)(x-5y+4)2
80.4×
79.69002
4a2b(x2y3+x3y2z3)÷
(x-3)2+(4x-4)(2x+4)4(y-z)2-(3y-z)(3y+z)
100x2-y2(d+q)(x-y)-(d+q)(4x+y)
a2-10ab+25b236+48(d-p)+16(d-p)2
a3-100a81x4-16
(-2x2y3)2•(-xy3)2(2a-b)(5a+b)
3x(x-1)(x-1)(x-5y+4)2
6.4×
5.6952
(3a)3•b2÷
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