初中八年级数学上册整式的乘法和因式分解练习题8Word格式文档下载.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8Word格式文档下载.docx
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3(x-4)2+(3x+4)(3x-2)(y-z)2+(4y-z)(2y+z)
36x2-49y2(b+n)(x+6y)+(b+n)(6x+y)
a2-20ay+100y225+20(b+n)+4(b+n)2
b3-49bx4-16
50a-30ab20ab2c+30bc
14q(4+b)+20q(4+b)2(4+b)-m(4+b)
81-25b2100x2-64y2
0.49n2-25(x+y)2-(x+8y)2
9-42n+49n2(m+n)2+6m(m+n)+9m2
4y2+24y+3616a2+8a(x-y)+(x-y)2
x2-9x+14x2+5x-36
20x2+44x+881-64a2
(-3xy2)2•(x3y)3(a+b)(3a-b)
-3x(x+5)(x+2)(3x+6y-3)2
3.4×
2.61952
(2a)2•b2÷
2ab(7x3y4+3x2y4z4)•4xy
3(x-4)2-(2x+2)(4x-2)2(y-z)2+(2y-z)(2y-z)
x2-81y2(a+q)(6x+y)-(a+q)(6x-2y)
a2+8am+16m29+24(c+q)+16(c+q)2
b3-100bx4-16
80a+60ab6a3b3c-90b4
8p(5+a)-12p(5+a)6(5+a)-m(5+a)
16-4b250x2-32y2
0.49n2-25(3x-2y)2-(9x+y)2
36+120m+100m2(a+b)2+8m(a+b)+16m2
25m2-40m+1625a2-10a(x-y)+(x-y)2
x2-16x+63x2-9x-10
2x2+24x+544-81n2
(-3x3y3)2•(x2y)2(5a-b)(3a-3b)
2x(x-4)(x-5)(2x+y-2)2
70.4×
69.63052
4a2b(3x3y4+x2y3z2)•x2y
(x-3)2+(4x-5)(3x-1)3(y+z)2+(4y-z)(3y-z)
x2-25y2(p-b)(4x+6y)+(p-b)(x+4y)
a2+14an+49n236+48(a+m)+16(a+m)2
c3-100c16x4-16
15a+90ab10abc+90bc
6q(y-6)-12p(y-6)6(y-6)-m(y-6)
81-4y22x2-2y2
0.04m2-361(6x-y)2-(6x-y)2
64-128y+64y2(a-b)2-4m(a-b)+4m2
16x2+24x+916a2+8a(a-b)+(a-b)2
x2+8x+12x2+4x-32
16x2+44x+1816-49m2
(2x2y)2•(-x2y)2(a+b)(6a+6b)
-3x(x+2)(x-1)(x-3y-2)2
2.3×
1.78032
(7a)3•b2÷
14ab(8x4y3+x3y3z4)÷
x2y2
(x-4)2-(2x-4)(2x-2)(y-z)2-(2y+z)(4y+z)
x2-y2(m+c)(6x-y)-(m+c)(2x+y)
a2-18ax+81x216-40(d-m)+25(d-m)2
d3-25d16x4-16
5a+100a2a2b3c-30b4
8q(y-7)-36q(y-7)4(y-7)+m(y-7)
100-49n248x2-75y2
0.36x2-256(x+4y)2-(5x-10y)2
16-64m+64m2(m+n)2+10m(m+n)+25m2
81n2-126n+499a2+6a(m-n)+(m-n)2
x2+13x+42x2-5x-36
5x2-18x+16100-100m2
(2xy2)3•(-x2y)2(a+5b)(a-b)
2x(x-4)(x-3)(x-y-4)2
80.2×
79.82052
(3a)3•b2•8a2b(x4y3-x4y4z2)÷
6x2y2
2(x-4)2+(4x+1)(2x-5)(y-z)2+(4y+z)(3y+z)
64x2-y2(b+p)(6x+y)-(b+p)(6x+y)
a2+10ay+25y225-40(b-p)+16(b-p)2
a3-100a81x4-256
30a+100a4b16a4b3c+90b3c
6q(1+b)+20p(1+b)4(1+b)+m(1+b)
36-64n250x2-8y2
4a2-400(x+5y)2-(2x-10y)2
1+20y+100y2(x-y)2+4m(x-y)+4m2
81b2-54b+925a2+10a(a+b)+(a+b)2
x2-6x+8x2+3x-18
3x2-35x+504-25a2
(2xy)2•(-x2y2)2(a+b)(a-b)
3x(x+2)(x-3)(6x+3y+3)2
1.1×
0.96012
(7a)3•b4•2ab2(x4y2-x4y3z3)÷
4x2y2
(x-2)2-(2x-5)(4x-4)2(y+z)2+(3y-z)(4y+z)
x2-y2(q-b)(6x+y)-(q-b)(x-y)
a2-4ay+4y216-32(a-m)+16(a-m)2
b3-16bx4-16
15a4+90a18a4b3c+70bc
20p(x+5)+4p(x+5)2(x+5)+m(x+5)
1-4b23x2-48y2
0.09a2-16(3x-y)2-(5x+10y)2
81-108x+36x2(a-b)2+8m(a-b)+16m2
25x2-50x+259a2+6a(x-y)+(x-y)2
x2-11x+24x2+5x-6
3x2+19x+2025-25b2
(3xy)2•(x3y)2(2a+b)(a-b)
-3x(x-2)(x+4)(2x+2y-3)2
20.3×
19.76992
(4a)3•b3•2ab(x2y3-x3y3z2)•4x2y
(x+3)2+(2x-1)(2x-1)2(y+z)2-(3y-z)(4y-z)
4x2-y2(q-b)(x-y)-(q-b)(x+y)
a2-10ay+25y24-20(b+p)+25(b+p)2
d3-9dx4-16
70a-60a26a3bc+90b
4p(5-b)-12p(5-b)6(5-b)-m(5-b)
100-9x212x2-3y2
0.04m2-144(6x+4y)2-(8x-7y)2
9-24x+16x2(x-y)2+4m(x-y)+4m2
25n2-50n+259a2-6a(a-b)+(a-b)2
x2+11x+18x2-2x-35
12x2-59x+72100-49n2
(2xy)2•(x3y3)2(a-b)(a+3b)
3x(x-3)(x+3)(x+6y+4)2
2.1×
1.940002
(9a)2•b4•16a2b(x4y2-x4y2z3)•7xy2
2(x-1)2+(4x-1)(3x-3)(y+z)2+(3y+z)(2y+z)
x2-9y2(c-p)(4x-y)+(c-p)(6x+3y)
a2-8am+16m236-36(n+d)+9(n+d)2
60a2-60ab6a2bc-30bc
18q(y+4)-28q(y+4)8(y+4)-m(y+4)
1-16n23x2-27y2
9a2-16(x-y)2-(x+y)2
25-70n+49n2(a-b)2-8m(a-b)+16m2
36x2-24x+425a2-10a(m-n)+(m-n)2
x2-17x+72x2-1x-30
20x2-46x+2416-25m2
(-3x3y)3•(x3y)2(a-b)(4a-6b)
-3x(x+5)(x+3)(3x-y-3)2
10.3×
9.720022
(3a)3•b2÷
14a2b(x4y4-x2y4z2)÷
8xy2
3(x+3)2-(4x+2)(3x-3)(y+z)2-(3y+z)(2y-z)
x2-y2(d-p)(x+3y)-(d-p)(x-y)
a2-12ab+36b225-40(m-c)+16(m-c)2
b3-100b16x4-1
55a-80a26ab2c-40b4c
4q(x+6)+16q(x+6)6(x+6)+m(x+6)
100-81x264x2-36y2
0.16y2-9(8x+3y)2-(x-y)2
1+16b+64b2(a+b)2+6m(a+b)+9m2
100x2+100x+2536a2-12a(a-b)+(a-b)2
x2+13x+40x2+6x-40
15x2-13x+281-81n2
(-2x2y3)2•(-xy3)3(a-2b)(3a-6b)
-3x(x+5)(x+1)(4x-5y+1)2
8.2×
7.859952
(7a)3•b3•18ab(x3y2+9x3y3z4)•6x2y2
(x+3)2-(2x+3)(2x+4)(y+z)2+(4y+z)(3y+z)
x2-y2(p-b)(x-y)-(p-b)(x-y)
a2-20ay+100y216+32(p+c)+16(p+c)2
a3-100a16x4-16
45a4-40a416a4b3c+80b
18q(y-4)+8p(y-4)8(y-4)+m(y-4)
1-16n227x2-3y2
0.36y2-196(9x+y)2-(x-y)2
9-24b+16b2(x+y)2+12m(x+y)+36m2
16m2-40m+254a2-4a(a+b)+(a+b)2
x2+13x+36x2+5x-24
6x2+19x+89-16n2
(2xy3)3•(-x2y)2(a+b)(6a+b)
-3x(x+1)(x+1)(x-4y+3)2
10.2×
9.83052
(4a)2•b2÷
4ab2(2x2y4-8x4y2z4)•xy2
4(x+3)2+(2x-2)(3x-3)4(y+z)2-(3y-z)(2y+z)
100x2-25y2(n-d)(3x+y)-(n-d)(5x+2y)
a2-18ay+81y216+24(d-p)+9(d-p)2
b3-100b81x4-256
65a2-50a3b4a4b2c-40b2c
18p(x-9)+36p(x-9)6(x-9)-m(x-9)
9-100m212x2-27y2
0.04x2-64(9x-y)2-(8x-y)2
49+28m+4m2(x+y)2+8m(x+y)+16m2
81x2+144x+6425a2-10a(a+b)+(a+b)2
x2+17x+72x2+2x-24
15x2+25x+1049-64b2
(2xy)2•(-x3y)3(a+5b)(2a+5b)
-3x(x+2)(x+2)(x-y-3)2
5.1×
4.940012
(7a)2•b3÷
18ab(5x3y2+x2y2z2)÷
5x2y2
3(x-2)2+(2x-2)(2x+3)3(y+z)2-(2y+z)(3y+z)
81x2-y2(b-p)(3x+y)-(b-p)(x-2y)
a2-8an+16n24+20(b+n)+25(b+n)2
c3-9cx4-1
45a-60ab16a2bc-10b2
12p(6-b)-20p(6-b)6(6-b)+m(6-b)
64-36y2100x2-16y2
4m2-1(x-y)2-(x+10y)2
1+10a+25a2(a-b)2-12m(a-b)+36m2
16a2-72a+819a2+6a(x-y)+(x-y)2
x2+6x+8x2+7x-18
12x2+46x+4225-64a2
(-2x2y)3•(xy)3(3a+b)(5a+6b)
-3x(x+2)(x-5)(5x+y-3)2
3.1×
2.93002
(8a)3•b4•16a2b(x3y3+5x2y2z2)•x2y
(x-1)2-(4x+1)(3x+5)(y+z)2+(2y-z)(2y-z)
x2-y2(d-m)(5x+y)+(d-m)(x+5y)
a2-12am+36m29+30(c+p)+25(c+p)2
c3-16cx4-16
40a3-30a310a3bc-70b2c
20p(1-b)-20q(1-b)6(1-b)-m(1-b)
25-64y248x2-48y2
64n2-121(5x-y)2-(7x-y)2
36+84y+49y2(m-n)2+10m(m-n)+25m2
81b2-162b+814a2-4a(a-b)+(a-b)2
x2+6x+8x2-6x-16
9x2-15x+6100-16m2
(2xy)2•(x2y2)2(a+6b)(a-b)
-2x(x+2)(x-5)(6x+4y-2)2
7.2×
6.89972
14ab(7x2y2-x4y2z2)÷
7xy2
2(x+1)2+(4x+4)(4x-2)(y-z)2+(2y+z)(3y+z)
81x2-36y2(c-m)(x-6y)-(c-m)(x-5y)
a2+8am+16m24-20(p+b)+25(p+b)2
d3-16d16x4-1
25a2+70a2b10a2bc-100bc
2p(y+8)+32p(y+8)6(y+8)+m(y+8)
36-64n23x2-12y2
0.16y2-64(9x-y)2-(8x+y)2
4+40y+100y2(m+n)2+12m(m+n)+36m2
25n2-10n+116a2-8a(x-y)+(x-y)2
x2-18x+81x2+9x-10
12x2-49x+4964-36n2
(3x2y)2•(x2y3)2(5a+2b)(2a-b)
-3x(x+4)(x+3)(x+y-1)2
7.850032
(7a)3•b4÷
8a2b(3x4y3+x3y2z4)÷
xy2
2(x+4)2+(3x+5)(4x-5)(y+z)2+(2y-z)(2y+z)
4x2-y2(d+q)(2x+y)+(d+q)(5x+4y)
a2+12ay+36y29+30(b+q)+25(b+q)2
b3-81bx4-1
90a-40a4a2b2c-70b4c
4p(y+8)-8q(y+8)2(y+8)-m(y+8)
1-100x22x2-50y2
0.64b2-64(x+5y)2-(x+y)2
16+16y+4y2(a-b)2-12m(a-b)+36m2
4b2+12b+94a2+4a(x+y)+(x+y)2
x2+8x+16x2+5x-6
10x2-58x+7216-25a2
(-2xy)2•(-xy2)2(4a+b)(3a-b)
2x(x-1)(x+4)(x-4y-4)2
40.1×
39.919952
(4a)3•b3•4ab2(6x3y2-8x3y4z4)•xy2
2(x+3)2+(4x+1)(2x+1)2(y-z)2-(4y+z)(2y+z)
x2-25y2(q+a)(4x-y)+(q+a)(3x+y)
a2+14ab+49b236+24(b+p)+4(b+p)2
a3-25ax4-16
85a+60a4abc+10b
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