人教版初二数学上册整式的乘法和因式分解练习题大全73Word下载.docx
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(-2x3y3)2•(-x3y2)2(5a+b)(3a-b)
2x(x+4)(x+4)(2x+y-2)2
40.1×
39.96952
(7a)3•b3÷
20a2b(x2y4+2x3y2z4)÷
xy
(x-3)2+(2x+4)(3x+3)(y-z)2+(2y+z)(3y-z)
49x2-y2(n-d)(x+3y)+(n-d)(x+y)
a2+16ax+64x24-16(c-m)+16(c-m)2
c3-16cx4-81
(-2xy)3•(-x2y)3(a-b)(a+b)
-3x(x-2)(x+1)(x+y+2)2
30.2×
29.86992
(7a)3•b4÷
2a2b2(3x3y2+5x3y3z4)•8xy2
4(x-4)2-(3x-4)(2x+5)(y+z)2+(4y+z)(2y+z)
16x2-36y2(n-d)(5x+y)-(n-d)(x-4y)
a2+20an+100n29-18(d+p)+9(d+p)2
a3-25ax4-256
(-2x3y2)2•(-xy2)3(2a+2b)(a-b)
-3x(x-2)(x-1)(x+y-3)2
50.1×
49.97002
(2a)3•b3•4a2b2(5x2y3-x4y4z3)•7xy2
(x+4)2+(2x-4)(3x+5)(y+z)2+(2y-z)(4y+z)
100x2-y2(p-d)(x-y)+(p-d)(x+y)
a2+4ab+4b225-40(b+n)+16(b+n)2
a3-64ax4-16
(-3xy)2•(xy)3(4a+6b)(a+b)
-3x(x+2)(x-5)(5x-6y+2)2
49.92032
(7a)2•b4•6a2b(6x2y2+2x2y4z4)•5x2y2
3(x-4)2-(4x-2)(4x-3)(y+z)2+(3y+z)(2y+z)
x2-4y2(q-b)(x+2y)+(q-b)(3x+y)
a2+14am+49m24-28(p+b)+49(p+b)2
b3-4bx4-16
(-3xy)2•(x2y)2(3a+b)(3a-b)
-3x(x+4)(x-2)(5x-y-1)2
30.3×
29.770002
(3a)3•b2•6a2b2(x4y4+9x2y2z3)÷
4(x-1)2-(3x-1)(4x-1)3(y+z)2+(3y+z)(3y-z)
25x2-100y2(m+c)(x-5y)+(m+c)(3x-y)
a2-16ax+64x29+18(a-m)+9(a-m)2
d3-36dx4-81
(-2x3y2)2•(-x3y)2(6a+b)(6a-6b)
3x(x+1)(x+4)(x+y+4)2
6.3×
5.710022
(6a)3•b4÷
2a2b2(x3y3-4x4y3z3)÷
8xy
4(x-1)2+(3x+4)(3x+1)3(y+z)2+(4y+z)(4y-z)
25x2-64y2(d-p)(6x+5y)-(d-p)(x-y)
a2+4ab+4b236+72(n+a)+36(n+a)2
b3-81bx4-16
(2xy)2•(xy2)2(3a-b)(a-b)
-3x(x+2)(x+2)(3x+y-2)2
5.710032
(6a)3•b3÷
8a2b2(x4y2+6x4y2z2)÷
6xy2
4(x+2)2-(3x-3)(2x+1)2(y-z)2-(3y-z)(2y-z)
x2-100y2(m-c)(4x+6y)-(m-c)(4x-y)
a2-6ab+9b24-12(n-d)+9(n-d)2
a3-64ax4-256
(3x2y)3•(xy3)2(a-6b)(6a+b)
-3x(x-1)(x-5)(5x+y-4)2
9.4×
8.699952
(9a)2•b3÷
6a2b(x2y3+2x4y4z4)÷
2xy
(x+2)2+(2x+4)(3x-2)(y+z)2+(2y+z)(4y-z)
x2-y2(p-b)(4x-5y)-(p-b)(5x-y)
a2+18an+81n29-24(n-a)+16(n-a)2
d3-49dx4-16
(3xy)3•(-xy)3(4a+6b)(a-6b)
-2x(x-3)(x-1)(2x+3y+2)2
2.3×
1.78002
(2a)3•b4•8a2b(x2y2+x3y4z4)÷
(x+1)2-(3x+3)(4x-2)(y+z)2+(3y+z)(4y+z)
25x2-y2(n+c)(6x-y)+(n+c)(2x-y)
a2+4am+4m216-56(m+a)+49(m+a)2
d3-25d81x4-256
(3xy)3•(-x2y)3(a-b)(3a-4b)
2x(x+3)(x+3)(x-6y+1)2
6.1×
5.95052
(3a)3•b4•14a2b2(x4y4-4x4y3z4)÷
x2y
3(x-2)2-(2x-3)(4x+4)3(y-z)2-(2y+z)(2y-z)
9x2-y2(p-b)(x-2y)+(p-b)(x+6y)
a2-20an+100n225-20(a-p)+4(a-p)2
c3-25cx4-256
(2xy)2•(xy)2(a+b)(a+b)
3x(x+2)(x+1)(x+y+3)2
39.98032
(4a)2•b3÷
2a2b(x2y2-x4y4z3)•3x2y2
3(x-3)2+(2x-5)(2x+2)4(y+z)2+(3y-z)(3y+z)
x2-y2(c-m)(5x-y)+(c-m)(2x-3y)
a2-4ay+4y216+32(d-m)+16(d-m)2
a3-100ax4-1
(2xy2)2•(-xy3)3(4a+b)(a+b)
-3x(x+1)(x-1)(x+y-3)2
3.4×
2.68002
(5a)2•b4•12ab2(x2y2-x4y2z4)÷
3x2y
(x-4)2-(2x+2)(4x+1)4(y-z)2-(4y+z)(4y-z)
49x2-y2(a-n)(6x+4y)-(a-n)(x+y)
a2+18ax+81x29-42(b-n)+49(b-n)2
c3-81c16x4-256
(3xy)3•(xy3)3(6a-3b)(4a-b)
-3x(x-2)(x+3)(x-5y+3)2
90.4×
89.69962
(9a)2•b2•18ab(x3y2+4x3y2z3)•x2y2
(x+2)2-(4x+4)(4x-1)4(y+z)2+(4y+z)(4y+z)
x2-y2(b+p)(5x+y)-(b+p)(x+y)
a2-16ab+64b24-12(b-n)+9(b-n)2
a3-64ax4-1
(3xy)2•(-xy3)2(2a-6b)(a-2b)
-2x(x-4)(x-4)(2x+y+4)2
60.3×
59.76972
(4a)2•b4÷
4ab(x3y3+6x3y4z3)÷
xy2
3(x-3)2-(2x+1)(4x+1)4(y+z)2-(3y+z)(4y+z)
x2-36y2(q-a)(6x+2y)-(q-a)(5x-y)
a2+12an+36n225+50(n+a)+25(n+a)2
b3-49bx4-1
(-2x3y)3•(-x3y3)3(a-b)(a+5b)
-3x(x+2)(x+1)(x-5y-4)2
20.4×
19.640052
(3a)3•b3•6ab2(6x3y2+5x4y3z3)÷
(x+4)2-(4x+4)(4x+3)(y+z)2+(2y+z)(3y-z)
x2-y2(c+q)(4x-4y)+(c+q)(6x+y)
a2-6ab+9b216+48(c+n)+36(c+n)2
a3-81ax4-1
(-2xy)2•(xy3)3(6a-2b)(3a+4b)
-3x(x+1)(x+1)(x-y+3)2
5.1×
4.98012
(6a)2•b2•18a2b(6x4y3+x3y3z4)÷
6xy
(x+4)2+(3x-2)(3x+2)3(y+z)2+(2y-z)(3y+z)
9x2-y2(m+d)(6x-y)+(m+d)(2x-y)
a2-6ab+9b29+24(m+d)+16(m+d)2
a3-25ax4-1
(-2x3y)2•(-xy)3(3a-3b)(a-b)
-3x(x+3)(x-3)(3x-y-1)2
5.3×
4.72992
(7a)2•b4•8a2b(2x2y4-x4y2z3)•xy2
(x+1)2-(4x+5)(2x+3)(y-z)2+(3y-z)(2y-z)
64x2-64y2(d-n)(x-2y)-(d-n)(3x-5y)
a2+10ax+25x236+72(p+b)+36(p+b)2
c3-64cx4-16
(3x2y2)3•(xy)3(3a+5b)(2a+b)
2x(x+1)(x+2)(x-y+2)2
8.1×
7.93052
(5a)3•b2•16ab(6x3y4-8x2y2z4)÷
3(x-3)2-(4x-2)(2x+3)(y-z)2-(2y-z)(4y+z)
81x2-64y2(b+q)(x-y)+(b+q)(x+y)
a2+12ay+36y236+72(m+a)+36(m+a)2
c3-9cx4-1
(2x2y2)3•(-x3y)2(5a+6b)(a-b)
3x(x+3)(x+2)(4x+y+1)2
30.1×
29.93982
(3a)2•b3÷
10ab2(x3y2-9x2y4z3)•xy
(x-2)2+(3x-1)(2x-3)(y-z)2+(2y-z)(3y-z)
x2-y2(q-a)(2x+5y)+(q-a)(6x-y)
a2-8ax+16x29+18(q+a)+9(q+a)2
(-2xy)2•(xy3)2(a+2b)(5a-2b)
3x(x-3)(x-1)(5x+y+4)2
8.3×
7.78982
(2a)2•b4÷
16a2b2(4x3y2+x3y4z4)•6x2y
2(x-2)2+(4x-5)(2x-1)(y+z)2-(2y+z)(3y-z)
x2-36y2(b+n)(2x-4y)-(b+n)(x-3y)
a2-8am+16m24-28(d+m)+49(d+m)2
c3-36c16x4-16
(-3xy3)2•(xy3)3(5a+2b)(a-4b)
3x(x-2)(x-1)(2x-y-3)2
2.1×
1.910002
(8a)2•b2•4ab2(3x4y4-6x3y4z3)÷
3(x+3)2-(3x+3)(4x+3)4(y+z)2+(3y+z)(3y+z)
49x2-y2(n-d)(x-y)-(n-d)(x+5y)
a2+8ax+16x29+18(d+n)+9(d+n)2
d3-100dx4-256
(3x2y2)2•(-x3y)2(a+b)(6a+b)
3x(x+2)(x+2)(x+y+3)2
10.1×
9.97022
(3a)3•b4•4ab2(4x4y4-7x3y4z2)÷
7x2y2
(x-4)2-(3x-4)(2x+4)(y-z)2-(2y-z)(3y+z)
x2-y2(b+n)(6x+y)-(b+n)(6x+4y)
a2+20ax+100x24-12(b+m)+9(b+m)2
b3-100bx4-81
(3xy)2•(xy)3(5a-5b)(a+b)
-2x(x+3)(x+3)(x-2y-4)2
8.640002
20ab(5x3y4+x2y2z3)•x2y2
3(x+3)2+(2x-1)(2x-4)(y-z)2+(2y+z)(3y+z)
25x2-y2(p+c)(3x-2y)-(p+c)(2x+6y)
a2+18ab+81b236+36(a+p)+9(a+p)2
a3-81ax4-16