初中八年级数学上册整式的乘法和因式分解练习题50文档格式.docx
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初中八年级数学上册整式的乘法和因式分解练习题50文档格式.docx
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b3-36b16x4-81
75a3-100a8abc-70b3
14p(y-4)+12p(y-4)6(y-4)+m(y-4)
25-16m212x2-3y2
0.04a2-289(7x-y)2-(3x-10y)2
49-28a+4a2(x+y)2+8m(x+y)+16m2
49a2-112a+6416a2-8a(a-b)+(a-b)2
x2-16x+64x2-8x-9
8x2-60x+10081-16b2
(3xy3)2•(xy2)2(a-2b)(a-5b)
-3x(x-5)(x-4)(4x+y-1)2
30.4×
29.64022
(3a)3•b4•12a2b2(x4y3+x3y4z4)•xy
(x-1)2+(2x+3)(4x+4)(y+z)2-(3y+z)(2y-z)
x2-y2(b-p)(3x-5y)+(b-p)(6x+y)
a2-8ay+16y236+72(m+c)+36(m+c)2
a3-64a16x4-1
10a4-20a2b16ab3c-50b
10p(8-a)+24q(8-a)2(8-a)+m(8-a)
64-25x227x2-3y2
9b2-400(x-y)2-(5x-8y)2
16+48x+36x2(m-n)2-4m(m-n)+4m2
4b2-28b+499a2+6a(a-b)+(a-b)2
x2-8x+15x2-8x-20
20x2+39x+1825-16m2
(2xy3)3•(xy)2(5a-3b)(a-4b)
-2x(x+1)(x-1)(3x-4y+4)2
80.2×
79.860042
(6a)2•b3÷
16a2b(x2y4-x2y2z3)÷
xy
4(x+4)2+(4x-5)(4x-5)(y+z)2-(4y+z)(4y-z)
100x2-y2(a-m)(x+6y)+(a-m)(x-2y)
a2-12ay+36y225+50(a-m)+25(a-m)2
d3-64d16x4-1
35a+40a310abc-40b3c
16q(9-b)-28p(9-b)8(9-b)-m(9-b)
64-36x236x2-64y2
0.49n2-4(x+y)2-(x-7y)2
1+10b+25b2(a+b)2-12m(a+b)+36m2
16b2-40b+254a2+4a(m-n)+(m-n)2
x2-14x+48x2+8x-9
6x2+46x+80100-64n2
(3x2y)2•(-x2y2)3(a+b)(2a+b)
-3x(x-4)(x-4)(2x+5y+3)2
40.1×
39.970002
(5a)3•b4•8a2b2(3x2y2+4x4y2z4)÷
3x2y2
4(x+4)2+(4x-2)(4x+5)2(y-z)2+(2y-z)(2y-z)
x2-y2(m-c)(5x-3y)+(m-c)(x-y)
a2+20am+100m29+36(n-c)+36(n-c)2
b3-16b16x4-1
100a+40a32ab2c+100b
20p(4+b)-36p(4+b)2(4+b)+m(4+b)
100-9x28x2-2y2
64n2-49(x-y)2-(x+y)2
16-40n+25n2(a-b)2-8m(a-b)+16m2
100b2-200b+10016a2-8a(m-n)+(m-n)2
x2+9x+18x2+5x-36
12x2-35x+1864-25y2
(2x3y)2•(-x2y)2(5a+4b)(4a+4b)
-2x(x+4)(x+1)(x+5y+1)2
6.1×
5.939962
(7a)2•b4•6ab2(x2y3+x2y4z3)÷
5xy2
3(x+1)2+(2x+5)(3x-4)3(y-z)2-(2y-z)(4y+z)
49x2-y2(m+d)(5x+3y)-(m+d)(4x-y)
a2-6an+9n225+70(n+b)+49(n+b)2
a3-4ax4-256
35a3-70a8abc-90bc
14p(x-2)+4q(x-2)8(x-2)+m(x-2)
1-25a23x2-27y2
9x2-64(x+y)2-(x-10y)2
16+32y+16y2(a+b)2-10m(a+b)+25m2
4n2+4n+116a2-8a(x-y)+(x-y)2
x2+8x+12x2-7x-18
8x2+40x+4225-25y2
(2x2y2)2•(-x3y)3(6a-4b)(a+b)
2x(x+5)(x+1)(3x-y-3)2
50.2×
49.840012
(5a)2•b4•4ab(9x2y3-x3y3z3)•xy
4(x+3)2-(2x-4)(4x-3)2(y-z)2-(4y+z)(4y-z)
x2-y2(c-q)(x+3y)-(c-q)(x+5y)
a2+4ay+4y236+36(b-m)+9(b-m)2
b3-100bx4-81
20a+100ab8abc+10b2c
18q(y-4)-20q(y-4)6(y-4)+m(y-4)
36-4x24x2-100y2
0.09y2-144(7x+y)2-(x+y)2
81+126n+49n2(m-n)2-4m(m-n)+4m2
36n2+120n+10016a2+8a(x+y)+(x+y)2
x2+10x+25x2-6x-16
8x2+42x+5436-9n2
(2x2y2)2•(xy2)2(2a+3b)(2a+3b)
-3x(x+2)(x+1)(3x-y-3)2
5.4×
4.69002
(2a)3•b2÷
2ab(6x3y2-9x2y4z2)÷
7x2y
4(x-3)2+(2x+4)(4x+3)4(y-z)2-(2y+z)(2y-z)
x2-y2(d-p)(4x+4y)-(d-p)(3x+3y)
a2-18ax+81x216+48(q-b)+36(q-b)2
a3-25ax4-1
55a3-70a2ab3c+20bc
18p(2+b)-24q(2+b)4(2+b)+m(2+b)
25-81b23x2-3y2
16y2-289(x-6y)2-(x+8y)2
64+160n+100n2(x-y)2+12m(x-y)+36m2
4n2-36n+814a2-4a(m-n)+(m-n)2
x2-10x+21x2-3x-40
12x2-34x+2436-25b2
(2xy)3•(xy)3(a-b)(3a-3b)
2x(x+1)(x+5)(x+y-2)2
40.2×
39.85022
(2a)2•b4•18ab2(x2y3-x3y2z2)•5xy2
(x-1)2-(3x+4)(2x-4)3(y+z)2-(3y+z)(2y-z)
x2-y2(a-n)(x-2y)-(a-n)(x-y)
a2+6ay+9y24-16(d+p)+16(d+p)2
a3-25ax4-81
80a2+10a418abc-100b2
6q(4+a)-36q(4+a)6(4+a)+m(4+a)
36-64b275x2-27y2
49a2-144(7x+3y)2-(x+8y)2
9+24y+16y2(x-y)2-12m(x-y)+36m2
16n2-72n+819a2-6a(x-y)+(x-y)2
x2+6x+9x2+5x-36
12x2+60x+7225-25y2
(-2xy2)2•(xy3)3(a+b)(6a+b)
2x(x+1)(x-3)(5x+2y-4)2
30.2×
29.89952
18a2b(2x3y3-7x3y2z2)•4x2y2
2(x-2)2-(3x+2)(2x-1)(y-z)2+(3y-z)(2y-z)
25x2-y2(n+d)(2x+y)+(n+d)(6x-y)
a2-10an+25n225-20(m+b)+4(m+b)2
d3-9d16x4-1
90a+70a2b20a4bc-20b3
8p(5+a)-32p(5+a)2(5+a)+m(5+a)
16-81m232x2-18y2
0.81y2-64(5x-y)2-(x-y)2
36-108m+81m2(m-n)2+8m(m-n)+16m2
64b2+48b+925a2-10a(a+b)+(a+b)2
x2-11x+24x2-3x-28
16x2+36x+2036-81x2
(3x2y2)3•(-xy2)2(2a+b)(a-b)
-2x(x-2)(x+3)(2x+y-1)2
6.2×
5.87982
(3a)3•b3•16ab(x2y3+x4y3z2)•x2y
(x-1)2+(2x-1)(3x+3)2(y+z)2-(4y+z)(2y+z)
25x2-y2(a-m)(2x-5y)-(a-m)(2x-6y)
a2+10an+25n236+24(c+m)+4(c+m)2
a3-4a81x4-256
95a+50a3b18ab3c+70b
16p(6-a)+4p(6-a)4(6-a)-m(6-a)
25-4y216x2-36y2
4x2-49(7x-y)2-(7x-7y)2
1-8y+16y2(x+y)2-6m(x+y)+9m2
4b2-16b+164a2-4a(m-n)+(m-n)2
x2-11x+18x2+2x-24
16x2-28x+12100-4b2
(-2x3y)3•(xy3)2(a+b)(a+6b)
-3x(x-4)(x-4)(3x-5y+3)2
10.4×
9.62032
(4a)3•b2÷
14ab2(x2y4-5x2y2z3)•x2y2
2(x+3)2+(4x+5)(4x-3)(y-z)2+(4y+z)(3y-z)
x2-49y2(p+a)(x-y)+(p+a)(5x+3y)
a2-8an+16n236+48(b+m)+16(b+m)2
d3-49dx4-256
75a-30a8ab3c-40bc
10q(3-a)+12q(3-a)6(3-a)-m(3-a)
1-4y216x2-36y2
4n2-196(8x+2y)2-(x-9y)2
9+30y+25y2(x-y)2-6m(x-y)+9m2
100y2+60y+925a2+10a(x-y)+(x-y)2
x2-10x+16x2+8x-9
8x2+54x+8136-49a2
(3x3y2)3•(-xy)3(a+5b)(4a-5b)
3x(x-4)(x-2)(4x-y-1)2
20.2×
19.890052
(6a)3•b2•4a2b2(x4y4-x2y3z3)•xy2
4(x+2)2+(4x+3)(4x+5)3(y+z)2+(3y+z)(4y-z)
4x2-81y2(c-q)(x-3y)+(c-q)(x+5y)
a2-4ab+4b225+30(c-n)+9(c-n)2
b3-16b81x4-81
55a+80a4a4bc-20b4
2q(y+9)+4p(y+9)8(y+9)+m(y+9)
25-49a212x2-12y2
0.49n2-36(7x-4y)2-(x-y)2
36-96x+64x2(x+y)2+6m(x+y)+9m2
36x2-96x+644a2-4a(a-b)+(a-b)2
x2+9x+14x2+2x-24
6x2-43x+7236-36a2
(3xy2)2•(-xy)3(3a-b)(2a+6b)
3x(x+1)(x+5)(5x-y-2)2
90.3×
89.760052
(6a)3•b4÷
16a2b(x2y2-x2y4z3)•5xy2
4(x-4)2+(2x+5)(3x+3)4(y-z)2+(3y-z)(2y+z)
36x2-y2(b+n)(x+y)-(b+n)(x+y)
a2-4ay+4y236+36(d-p)+9(d-p)2
b3-64bx4-16
65a4-10ab12a3b2c+40bc
2p(4-a)+40q(4-a)8(4-a)-m(4-a)
1-16m275x2-12y2
0.25a2-256(8x+3y)2-(3x-y)2
81-126y+49y2(x+y)2+8m(x+y)+16m2
49x2+42x+916a2-8a(m-n)+(m-n)2
x2+6x+5x2-7x-8
4x2-4x+11-4m2
(-3xy3)3•(xy)2(a+b)(a+6b)
2x(x+5)(x+5)(x+4y+2)2
90.2×
89.8100012
(6a)3•b4•18ab(7x2y2+8x3y3z4)÷
2(x-4)2+(4x+3)(3x-4)(y-z)2-(4y+z)(4y+z)
36x2-64y2(p+b)(5x+y)-(p+b)(6x-y)
a2+4am+4m216+56(a+n)+49(a+n)2
a3-16a16x4-16
55a3-100a8abc+70b
8q(y+8)+24q(y+8)6(y+8)+m(y+8)
81-64m28x2-32y2
0.25a2-225(x+6y)2-(x-9y)2
1+8x+16x2(m-n)2-6m(m-n)+9m2
4y2-16y+164a2+4a(a+b)+(a+b)2
x2-5x+6x2-9x-10
12x2-31x+2081-9x2
(2x3y)3•(-xy2)3(a-5b)(5a-3b)
2x(x-2)(x-2)(4x-4y+2)2
89.78992
(5a)2•b2÷
16ab2(7x2y3-5x4y4z3)÷
x2y2
2(x-1)2+(3x-5)(3x+4)(y-z)2+(4y-z)(2y+z)
100x2-49y2(a+p)(x+4y)+(a+p)(x+y)
a2+4ab+4b216+48(m+b)+36(m+b)2
a3-25a16x4-16
85a3+90a310a4b3c+100b4c
10p(x-6)+28q(x-6)8(x-6)+m(x-6)
1-64a23x2-12y2
0.16n2-289(x+y)2-(3x+y)2
49+70a+25a2(x+y)2+8m(x+y)+16m2
36n2-12n+136a2+12a(m+n)+(m+n)2
x2-9x+18x2+6x-40
8x2+44x+564-16m2
(-3xy2)3•(x2y)3(6a+b)(a-4b)
-3x(x+2)(x+2)(x-2y-3)2
5.940002
(4a)2•b2•8ab(x2y3+x2y2z3)÷
2x2y2
3(x-1)2-(3x+2)(3x+5)(y+z)2+(2y+z)(3y+z)
x2-100y2(c+q)(x-y)+(c+q)(5x+y)
a2-16ay+64y29+42(p+d)+49(p+d)2
c3-49cx4-1
60a4-60a4a3b3c-70b
14q(9+
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