人教版初二数学上册整式的乘法和因式分解练习题大全77Word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77Word下载.docx
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3.3×
2.759972
(4a)2•b3•12a2b2(4x3y3-3x2y3z3)•x2y
4(x-3)2-(2x+4)(3x+1)(y+z)2+(2y-z)(4y-z)
x2-y2(n-a)(x+y)+(n-a)(x-y)
a2+8am+16m29-30(n+b)+25(n+b)2
c3-81cx4-256
(-3xy2)3•(-x2y3)2(a-b)(3a+6b)
-2x(x+4)(x-5)(x-y+1)2
10.3×
9.780002
(3a)2•b4÷
4ab(x3y2-x4y3z4)•xy2
2(x+1)2+(3x-5)(4x+2)3(y-z)2-(3y-z)(4y+z)
9x2-y2(m+c)(4x+3y)-(m+c)(x+y)
a2+6ax+9x236-24(c-q)+4(c-q)2
c3-49cx4-1
(2xy2)3•(xy)2(a-b)(a+3b)
-2x(x-4)(x-4)(2x+y-4)2
20.4×
19.629982
(6a)3•b4÷
18ab2(8x4y2+3x3y4z4)÷
9x2y
4(x+4)2+(3x+2)(4x+3)3(y+z)2+(2y-z)(4y+z)
x2-y2(c+p)(x+5y)+(c+p)(6x-y)
a2-16ax+64x24+20(c+m)+25(c+m)2
d3-100d16x4-81
(-2x2y3)2•(x2y2)2(a-b)(a+5b)
3x(x-2)(x+5)(x+y-3)2
9.4×
8.640022
(7a)2•b4•6a2b2(6x2y4+7x4y4z4)•5xy
(x+4)2-(4x-3)(2x+2)(y-z)2+(3y+z)(4y+z)
49x2-36y2(p-b)(x+4y)-(p-b)(4x-2y)
a2+12ay+36y216+56(c+q)+49(c+q)2
b3-49bx4-1
(3xy)2•(x2y)2(a+4b)(a-b)
-2x(x-5)(x-4)(2x-y-1)2
40.1×
39.969972
(3a)3•b4÷
2ab(x2y2+x4y2z2)÷
4x2y2
(x-3)2-(2x+2)(4x-2)(y-z)2+(4y+z)(3y-z)
9x2-y2(p-b)(6x+y)-(p-b)(x-6y)
a2+14ax+49x24-16(b+p)+16(b+p)2
b3-36b81x4-1
(3xy2)3•(xy)2(a-b)(a-2b)
-2x(x-2)(x+2)(x-3y+2)2
2.3×
1.74052
(8a)3•b3•6ab(x2y2+8x4y4z3)•2xy
(x-3)2-(2x+3)(3x-2)4(y-z)2+(4y+z)(4y+z)
16x2-y2(b+m)(3x-2y)+(b+m)(4x-4y)
a2-10am+25m236-72(d+n)+36(d+n)2
(-2x3y2)3•(xy)3(a-b)(a+6b)
-2x(x+2)(x+2)(2x+y+4)2
20.2×
19.820032
(5a)2•b2÷
16ab2(9x2y2+x4y3z3)÷
xy2
(x-2)2-(3x-5)(3x+5)(y+z)2-(4y-z)(3y-z)
25x2-25y2(b+q)(2x+4y)+(b+q)(4x-y)
a2+12an+36n225+70(p-a)+49(p-a)2
b3-49bx4-256
(2x3y)3•(-x2y)3(a-b)(2a+3b)
2x(x+3)(x+1)(x+y+3)2
7.3×
6.74952
(9a)2•b2•20ab2(3x2y3-6x3y3z4)÷
9x2y2
2(x+4)2+(4x+5)(2x+3)(y+z)2+(2y-z)(2y-z)
x2-y2(n-b)(x-y)-(n-b)(x-y)
a2-14ay+49y29-18(c-q)+9(c-q)2
b3-9bx4-256
(2xy3)3•(-x3y)3(a-3b)(a-b)
-3x(x+1)(x-5)(x-6y+4)2
2.77012
18ab(4x3y2-8x3y4z4)•xy
(x-2)2-(4x+5)(2x+5)(y-z)2-(3y+z)(3y+z)
64x2-36y2(d+n)(2x+2y)+(d+n)(6x+y)
a2+16an+64n216-56(m+b)+49(m+b)2
d3-16dx4-81
(-3xy)3•(x2y)2(a-b)(4a-b)
-3x(x-4)(x+5)(4x+y-3)2
50.1×
49.949972
(5a)2•b2•16ab(9x2y2+x4y2z3)÷
x2y2
3(x+2)2-(4x+5)(2x-4)(y-z)2+(4y-z)(2y-z)
4x2-y2(c+q)(x-6y)+(c+q)(3x-2y)
a2+12ab+36b216+32(n+b)+16(n+b)2
a3-49a81x4-16
(2x2y)2•(xy2)2(a-5b)(4a-6b)
3x(x+1)(x-3)(5x+5y+1)2
10.1×
9.940022
(4a)3•b2•12a2b2(x3y3+6x3y3z2)•5x2y
3(x-4)2+(3x-2)(2x-3)(y-z)2-(4y+z)(4y-z)
x2-y2(q+c)(x+y)-(q+c)(x+y)
a2+10am+25m216+48(d+p)+36(d+p)2
c3-16cx4-1
(2xy2)2•(-x3y)2(a-4b)(2a+2b)
3x(x+3)(x-4)(x+y-4)2
90.2×
89.84972
(9a)2•b4•20a2b(x3y3-3x2y4z2)÷
9xy2
(x-4)2-(2x+5)(2x+4)2(y-z)2-(4y-z)(2y+z)
64x2-49y2(q-b)(x+y)-(q-b)(3x+y)
a2+14ay+49y216-32(q+b)+16(q+b)2
a3-9a81x4-81
(2xy3)3•(-x2y)3(5a+b)(a+b)
-2x(x+3)(x+4)(5x-5y-3)2
4.1×
3.959952
(5a)3•b2•10ab2(x2y2-x4y4z3)÷
(x-2)2-(2x-2)(2x-4)(y+z)2+(2y-z)(3y-z)
100x2-64y2(d-p)(2x-y)+(d-p)(3x-6y)
a2+8am+16m29+30(q-d)+25(q-d)2
d3-25dx4-81
(-2xy)2•(xy)2(3a+b)(a-4b)
3x(x-2)(x+4)(x-y-2)2
3.4×
2.6100022
(7a)2•b3÷
10a2b2(8x3y3-x4y3z2)•xy
(x+2)2-(2x+1)(2x+2)4(y-z)2-(2y+z)(3y-z)
x2-y2(d-m)(3x+6y)+(d-m)(x+5y)
a2+4am+4m24+24(p+a)+36(p+a)2
d3-25d81x4-1
(-2x2y)2•(-xy3)3(a-5b)(a-4b)
-3x(x+2)(x+3)(5x-6y+3)2
4.2×
3.810052
(8a)2•b4•8a2b2(x4y2
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