人教版初中八年级数学上册整式的乘法和因式分解练习题25Word格式.docx
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人教版初中八年级数学上册整式的乘法和因式分解练习题25Word格式.docx
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a2-6am+9m24+8(c-p)+4(c-p)2
a3-64a81x4-1
85a3-60ab12abc+30b3
16q(8-a)-36q(8-a)6(8-a)+m(8-a)
49-16y22x2-50y2
0.64m2-324(9x-y)2-(x-8y)2
36+84b+49b2(x-y)2-4m(x-y)+4m2
4a2-4a+125a2+10a(x-y)+(x-y)2
x2-6x+8x2+5x-6
8x2+8x+225-49m2
(2xy)2•(-x3y2)3(3a+5b)(a+b)
2x(x+1)(x-5)(x-3y+4)2
20.2×
19.89002
(7a)3•b3÷
10a2b2(6x2y2+6x3y4z2)•x2y
(x-3)2-(2x-2)(4x-4)(y-z)2-(2y+z)(2y+z)
x2-y2(d+q)(3x+5y)+(d+q)(3x+6y)
a2-16ay+64y29-24(b+n)+16(b+n)2
b3-49b16x4-16
5a-40a2a2b3c+10b3c
8q(x-4)-8q(x-4)2(x-4)-m(x-4)
25-49b23x2-12y2
49n2-4(4x+y)2-(x+9y)2
1-20n+100n2(a-b)2+10m(a-b)+25m2
4y2+12y+925a2+10a(m+n)+(m+n)2
x2-8x+15x2+4x-12
12x2-35x+181-16m2
(-2xy3)3•(xy)2(a+b)(a+b)
2x(x-2)(x-3)(x-2y-1)2
4.2×
3.889952
(7a)3•b4÷
16a2b2(x4y2-8x4y4z3)•xy2
2(x+3)2+(2x+4)(4x+5)(y-z)2+(2y+z)(4y+z)
x2-y2(b+n)(3x+2y)-(b+n)(3x-3y)
a2-4ay+4y225-50(a-n)+25(a-n)2
a3-100ax4-256
55a2-90a44ab2c+90b3
10q(3-b)-32p(3-b)4(3-b)-m(3-b)
36-25x227x2-75y2
0.81m2-25(5x-2y)2-(2x-y)2
25-20m+4m2(a-b)2-8m(a-b)+16m2
16b2+40b+254a2-4a(x+y)+(x+y)2
x2+17x+72x2+4x-12
15x2-59x+5616-16x2
(-2xy2)3•(-x2y)3(4a+b)(4a-2b)
2x(x-4)(x-1)(3x-y-4)2
8.1×
7.970002
(2a)3•b3÷
6a2b2(x4y4+6x2y2z4)÷
xy
(x-1)2-(4x+3)(4x+4)(y-z)2-(3y-z)(2y-z)
x2-y2(p+a)(x+5y)-(p+a)(x+y)
a2-20ay+100y24+16(n-d)+16(n-d)2
a3-9ax4-16
35a2-60a46ab3c+70b
16q(4-a)+12q(4-a)8(4-a)-m(4-a)
25-4b264x2-64y2
4y2-100(7x+2y)2-(x+y)2
9+12a+4a2(m+n)2-12m(m+n)+36m2
9a2+30a+2536a2-12a(a-b)+(a-b)2
x2-8x+15x2-6x-16
4x2-40x+10049-4m2
(2xy)2•(xy3)2(a-3b)(a+3b)
3x(x+1)(x-2)(3x+2y+2)2
90.4×
89.649992
(5a)3•b2•6ab2(9x2y3+2x3y3z2)•3x2y
4(x-2)2-(4x+3)(3x-5)(y-z)2+(4y-z)(3y-z)
x2-y2(m+c)(x+y)+(m+c)(x-y)
a2+14ab+49b236-84(n+a)+49(n+a)2
b3-100bx4-256
10a3-20a2abc-100b
4q(1+b)+12q(1+b)6(1+b)+m(1+b)
49-100x236x2-16y2
0.49n2-1(x-6y)2-(8x-y)2
9-54y+81y2(a-b)2-6m(a-b)+9m2
36n2-48n+169a2+6a(a-b)+(a-b)2
x2+9x+20x2+4x-45
2x2+15x+2749-25a2
(2xy2)3•(x3y)2(4a-b)(5a-b)
-2x(x-2)(x-3)(5x-3y-3)2
3.1×
2.91962
(7a)2•b3•8a2b2(x3y2-3x3y3z3)•5x2y
4(x+4)2-(3x-5)(4x+4)(y-z)2-(3y-z)(2y-z)
16x2-y2(m+c)(2x+y)+(m+c)(5x+y)
a2+6am+9m216-56(c+n)+49(c+n)2
c3-81cx4-1
20a2+100a18ab2c-80b
6q(8+b)+16q(8+b)4(8+b)-m(8+b)
9-36m28x2-2y2
0.64x2-36(6x-y)2-(x-y)2
16-72y+81y2(x+y)2-4m(x+y)+4m2
81a2+126a+4936a2+12a(m-n)+(m-n)2
x2+11x+28x2-8x-9
8x2-22x+99-9y2
(-3xy)2•(-x3y2)2(4a-4b)(a+b)
-2x(x+5)(x-3)(6x+y-1)2
4.1×
3.99982
(2a)2•b4•4ab(6x4y2-8x2y4z4)•xy
(x+3)2+(3x-1)(4x-3)2(y+z)2+(3y-z)(2y-z)
x2-y2(b-q)(x+5y)+(b-q)(x-3y)
a2-6ax+9x24-8(b-q)+4(b-q)2
b3-25bx4-16
10a3-80a420ab2c-90b2c
20q(2+a)+4p(2+a)8(2+a)+m(2+a)
49-49x248x2-12y2
0.36a2-121(x+y)2-(x-y)2
36-120y+100y2(x-y)2-10m(x-y)+25m2
81m2-144m+6436a2-12a(x-y)+(x-y)2
x2+10x+16x2+5x-24
8x2+20x+81-9n2
(3xy2)3•(-xy3)3(a+4b)(4a+2b)
-2x(x+3)(x-3)(x+y+4)2
5.1×
4.939972
(6a)3•b4÷
6a2b2(9x4y2+8x4y3z3)÷
6x2y2
(x+1)2+(2x+1)(4x-3)2(y-z)2+(3y-z)(4y-z)
x2-y2(n-b)(x+y)+(n-b)(x+y)
a2-8ay+16y236+48(a-m)+16(a-m)2
c3-81cx4-256
20a+50a3b2a2b2c-20bc
12q(4-b)-12p(4-b)2(4-b)+m(4-b)
100-81n227x2-48y2
25x2-121(4x-2y)2-(x-y)2
36+120b+100b2(a-b)2+6m(a-b)+9m2
64m2-112m+499a2-6a(m+n)+(m+n)2
x2-11x+30x2-3x-18
16x2+12x+2100-100b2
(3xy)3•(xy2)3(5a-b)(6a-3b)
-3x(x+4)(x-3)(2x-y+3)2
20.4×
19.6100032
(9a)2•b2•10ab2(x4y2-x4y2z3)÷
7x2y2
3(x-3)2+(4x+2)(3x-5)(y-z)2-(2y+z)(3y-z)
49x2-36y2(c+p)(x+y)-(c+p)(x+y)
a2-14ab+49b236+84(a-p)+49(a-p)2
a3-16ax4-1
50a4+30a16abc-50b3
20q(x+5)-36q(x+5)4(x+5)-m(x+5)
49-81b2100x2-4y2
16y2-81(x-y)2-(2x-y)2
4-36b+81b2(a+b)2+12m(a+b)+36m2
25m2-80m+6436a2+12a(x+y)+(x+y)2
x2-13x+40x2-3x-18
9x2-36x+3516-81a2
(-3xy)2•(-xy)3(4a+2b)(2a+2b)
-2x(x-4)(x+3)(3x+4y+3)2
19.890052
(4a)3•b3÷
6a2b2(x2y3-5x3y4z4)÷
xy2
3(x-1)2+(3x-4)(4x-2)(y-z)2+(4y+z)(4y-z)
x2-y2(a-m)(3x-y)-(a-m)(6x-y)
a2+10an+25n225-70(q-c)+49(q-c)2
a3-81ax4-256
90a+40ab6abc-50b4
8p(y+1)+36q(y+1)4(y+1)+m(y+1)
49-25x23x2-3y2
0.64b2-16(5x+5y)2-(2x-7y)2
49-84y+36y2(m-n)2+4m(m-n)+4m2
25b2-60b+3616a2-8a(m+n)+(m+n)2
x2-8x+12x2+6x-7
15x2+56x+204-36n2
(-2xy)3•(x3y2)3(a-b)(3a+4b)
-3x(x-5)(x+3)(x+5y-1)2
6.2×
5.830022
(7a)3•b4•14ab(x3y3+x2y4z4)•x2y2
(x+2)2+(4x+3)(2x-2)4(y+z)2+(3y-z)(2y+z)
x2-16y2(a+m)(5x-4y)-(a+m)(5x-4y)
a2+8ay+16y225+60(d+n)+36(d+n)2
b3-64bx4-256
95a+70a20a3bc-90b2c
2p(y+9)-4q(y+9)6(y+9)+m(y+9)
16-16x248x2-3y2
64a2-100(x-3y)2-(x+y)2
16+80a+100a2(a+b)2+10m(a+b)+25m2
36x2+36x+94a2+4a(a+b)+(a+b)2
x2-7x+6x2-5x-14
15x2-60x+604-36y2
(-3xy)2•(-xy2)2(a+4b)(5a-5b)
3x(x-1)(x+2)(x-y+1)2
5.81002
(7a)2•b2•18a2b(7x4y2+x4y2z3)÷
x2y
(x+1)2+(3x-3)(2x+5)(y+z)2-(4y-z)(3y+z)
x2-81y2(b+q)(x+y)+(b+q)(3x+y)
a2-20ay+100y225+50(b+m)+25(b+m)2
c3-36cx4-256
60a4-80a16a3b3c+100bc
14p(8+a)-28p(8+a)2(8+a)-m(8+a)
36-25y275x2-3y2
36n2-196(x-y)2-(x-9y)2
36-60a+25a2(a+b)2-6m(a+b)+9m2
16y2-8y+136a2-12a(x-y)+(x-y)2
x2-15x+56x2+3x-18
12x2-34x+241-36x2
(-3xy)3•(-x3y3)3(a+b)(a+3b)
2x(x+3)(x-5)(x-y-1)2
2.3×
1.710012
(9a)3•b2•16a2b2(8x4y4+2x3y3z4)•3x2y2
4(x+1)2-(2x+3)(4x+1)4(y+z)2+(2y+z)(4y+z)
64x2-36y2(n-b)(4x+y)-(n-b)(x-2y)
a2+20an+100n236+24(p+b)+4(p+b)2
d3-81d16x4-16
80a2+60a4a2bc-30b3c
16p(7-a)-28p(7-a)4(7-a)+m(7-a)
16-9b248x2-3y2
4b2-169(7x-2y)2-(x+10y)2
81-108y+36y2(a-b)2+8m(a-b)+16m2
100x2+100x+259a2+6a(m+n)+(m+n)2
x2+14x+49x2+2x-24
8x2-16x+81-25a2
(-3x2y)2•(x3y)2(a-5b)(a+b)
-2x(x-5)(x+2)(5x+3y-3)2
5.3×
4.79952
(9a)2•b2÷
16a2b2(x4y2-x3y3z3)÷
3xy
(x-1)2-(4x-2)(2x-2)2(y+z)2+(3y+z)(2y-z)
x2-49y2(b-p)(x+y)+(b-p)(2x-6y)
a2-18ab+81b236+84(n-c)+49(n-c)2
d3-16d16x4-256
5a+50a2b18a2bc+40b
2p(y-2)+32q(y-2)2(y-2)+m(y-2)
81-81b28x2-50y2
49b2-169(x-y)2-(x-y)2
36-84y+49y2(x-y)2+6m(x-y)+9m2
49b2-98b+494a2+4a(a+b)+(a+b)2
x2-10x+16x2-3x-18
16x2+60x+564-64m2
(2xy)3•(-x3y)3(6a-6b)(a-b)
3x(x+4)(x+3)(x-5y-4)2
90.1×
89.98042
(5a)3•b4•2ab(x2y2-x2y4z2)÷
2xy
(x+4)2+(3x+4)(2x-5)4(y-z)2+(4y-z)(4y-z)
64x2-36y2(b-q)(x+y)+(b-q)(4x+6y)
a2-6am+9m24-8(c+n)+4(c+n)2
a3-49ax4-81
25a+70a314a3b3c-30b
4q(y+4)+12q(y+4)8(y+4)-m(y+4)
64-9b24x2-16y2
64m2-289(6x+y)2-(x+8y)2
100-140n+49n2(a-b)2-12m(a-b)+36m2
9a2+18a+94a2-4a(m+n)+(m+n)2
x2-12x+35x2+4x-45
16x2-28x+1264-64x2
(-3xy2)2•(x3y)3(a-b)(a-4b)
3x(x-4)(x+5)(x-y+2)2
7.1×
6.939952
(9a)3•b4÷
16ab(2x3y2+x4y4z3)•xy
2(x+1)2+(4x+1)(3x-5)(y-z)2+(3y-z)(2y+z)
4x2-y2(c-q)(3x+4y)+(c-q)(x-2y)
a2-16am+64m24-12(c-p)+9(c-p)2
b3-64bx4-1
5a4-40a26a4b2c-20b
8q(y-6)+32p(y-6)8(y-6)+m(y-6)
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