初中八年级数学上册整式的乘法和因式分解练习题30Word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30Word格式文档下载.docx
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a3-36a16x4-256
40a-70a314ab3c-60b
16q(9+a)+36q(9+a)2(9+a)+m(9+a)
4-16m212x2-27y2
0.81a2-256(3x-y)2-(x-10y)2
100-80a+16a2(m+n)2+12m(m+n)+36m2
25a2-60a+3616a2+8a(x+y)+(x+y)2
x2-11x+30x2+5x-50
16x2-40x+2136-16n2
(2x3y)2•(x2y2)2(6a-5b)(a-5b)
3x(x-5)(x+4)(2x-4y-4)2
50.2×
49.81952
(3a)2•b3•4a2b(8x2y4-8x3y4z3)•x2y2
(x-4)2+(4x+3)(2x+2)4(y+z)2-(4y-z)(4y-z)
25x2-y2(m-a)(3x+y)-(m-a)(4x-y)
a2+18am+81m236+48(m-d)+16(m-d)2
b3-49b81x4-16
5a4-10a310abc-50b3
14p(7+b)-36q(7+b)2(7+b)+m(7+b)
1-25y250x2-50y2
9b2-361(5x-5y)2-(4x-y)2
49-42a+9a2(m-n)2+4m(m-n)+4m2
4n2-4n+125a2-10a(x-y)+(x-y)2
x2+13x+42x2-6x-40
12x2+33x+2164-100y2
(2x2y)2•(x2y)3(5a-3b)(4a-4b)
-2x(x-5)(x+4)(x-y-3)2
30.1×
29.93022
(2a)3•b4÷
20a2b(x4y4-5x3y3z4)÷
4x2y
2(x-2)2-(2x-3)(2x+3)4(y+z)2-(4y-z)(2y+z)
x2-y2(b+n)(5x+y)+(b+n)(x-y)
a2+8ax+16x236+60(m-b)+25(m-b)2
c3-49c16x4-256
70a4+20a24a3bc-80b
6p(x+8)-4q(x+8)8(x+8)-m(x+8)
36-25x28x2-32y2
9a2-256(2x+y)2-(7x-y)2
9+36n+36n2(x+y)2+10m(x+y)+25m2
64n2+128n+6436a2+12a(a-b)+(a-b)2
x2-10x+9x2-3x-40
12x2+38x+301-36a2
(2xy2)2•(xy)3(a+6b)(6a-b)
-2x(x-2)(x-1)(5x-3y-4)2
10.3×
9.739952
(9a)2•b4÷
20a2b2(3x4y3+9x3y3z2)÷
xy
(x-1)2-(4x-3)(2x+1)(y-z)2-(4y+z)(3y+z)
x2-49y2(d+q)(x+y)+(d+q)(x-5y)
a2+10am+25m216+32(q+a)+16(q+a)2
c3-64cx4-81
5a+70a2b8ab3c+50b
12q(x-9)-8q(x-9)8(x-9)+m(x-9)
36-4b2100x2-36y2
16y2-25(x-5y)2-(x+y)2
1+8a+16a2(x-y)2-8m(x-y)+16m2
81y2+90y+254a2-4a(a-b)+(a-b)2
x2-10x+21x2-6x-7
4x2+17x+464-9n2
(3x3y)2•(x2y3)2(a-4b)(a+2b)
2x(x+5)(x-3)(x-y-3)2
1.1×
0.94032
(4a)3•b3÷
10ab2(x3y3+x2y3z3)÷
3xy2
3(x-3)2-(3x+1)(3x+4)(y+z)2-(3y-z)(4y+z)
64x2-y2(b+m)(5x+y)+(b+m)(x-y)
a2-6ay+9y29+18(n+b)+9(n+b)2
d3-49dx4-16
65a4+90a414abc+40b
20q(y-5)-32p(y-5)6(y-5)-m(y-5)
64-49m22x2-32y2
36x2-9(4x-y)2-(2x+9y)2
16-56n+49n2(m+n)2+10m(m+n)+25m2
4b2+12b+94a2-4a(m+n)+(m+n)2
x2+7x+10x2+1x-30
16x2+68x+72100-36x2
(2x3y)2•(x2y2)2(6a+b)(3a+5b)
3x(x+2)(x-1)(4x+5y-3)2
40.4×
39.699972
(4a)2•b4•20ab2(x3y4+x3y4z3)•x2y2
(x+1)2+(4x-1)(4x+4)3(y+z)2+(2y+z)(3y-z)
9x2-64y2(q+a)(3x-6y)-(q+a)(x+y)
a2+16ay+64y24+16(p-d)+16(p-d)2
a3-16ax4-16
90a4+30a4b12ab2c-10bc
6p(y+6)-40p(y+6)2(y+6)+m(y+6)
100-36a2100x2-100y2
0.36b2-36(2x+y)2-(5x+y)2
16+16y+4y2(x-y)2-8m(x-y)+16m2
49a2-98a+4916a2+8a(a-b)+(a-b)2
x2+10x+24x2+2x-35
8x2+32x+3049-49b2
(3x2y)2•(xy2)2(5a+b)(4a-5b)
-2x(x+3)(x+2)(2x-y-3)2
10.2×
9.829972
(3a)2•b4•14ab(x4y4+x3y4z4)÷
x2y2
3(x+4)2-(2x-2)(3x+4)(y-z)2-(3y+z)(3y+z)
25x2-100y2(c+q)(x+y)-(c+q)(5x-6y)
a2-6ay+9y236+84(m+b)+49(m+b)2
a3-36ax4-1
55a4-80a416abc+70b
8p(5-b)-12p(5-b)6(5-b)-m(5-b)
25-36y212x2-12y2
49a2-289(4x+6y)2-(7x+y)2
9-24y+16y2(x-y)2-8m(x-y)+16m2
16y2+40y+254a2-4a(m+n)+(m+n)2
x2-9x+14x2+7x-30
12x2-48x+3625-25x2
(-3x3y)2•(xy)3(6a+b)(a+4b)
-3x(x+5)(x-1)(x-3y-4)2
90.2×
89.879982
(5a)3•b2÷
6a2b(8x3y2+x2y4z2)•3x2y2
4(x+1)2+(4x-3)(2x-4)2(y-z)2+(3y-z)(4y+z)
100x2-y2(a+n)(4x+y)-(a+n)(x+y)
a2+10an+25n225-60(b+m)+36(b+m)2
d3-100dx4-16
95a3-30a2a2b2c+40bc
4q(x-8)+28q(x-8)2(x-8)-m(x-8)
9-100m236x2-4y2
16m2-400(x-y)2-(2x+8y)2
4+36m+81m2(x-y)2-4m(x-y)+4m2
4b2+12b+94a2+4a(m+n)+(m+n)2
x2-14x+48x2+5x-14
15x2-49x+2436-100b2
(3x3y3)3•(-xy)2(4a-b)(a+2b)
2x(x-5)(x+5)(x+5y-4)2
6.3×
5.74982
(7a)2•b3÷
12ab2(x2y4-x4y2z4)•5x2y
(x+3)2-(4x-4)(3x+1)(y-z)2+(4y+z)(4y+z)
x2-36y2(d+n)(3x-2y)-(d+n)(2x-y)
a2-6ay+9y24+20(d+p)+25(d+p)2
d3-16dx4-16
10a-70a22a4b3c-70b
4p(x+3)-28p(x+3)2(x+3)-m(x+3)
100-64m2100x2-4y2
0.36a2-9(4x+y)2-(4x-y)2
49-42x+9x2(m-n)2-8m(m-n)+16m2
100y2+20y+14a2+4a(m-n)+(m-n)2
x2-13x+42x2+6x-16
3x2+16x+21100-64a2
(-2x2y2)2•(-xy)2(4a-3b)(a-b)
-3x(x-1)(x+2)(x-3y-1)2
70.2×
69.890052
(3a)3•b3•4a2b(x2y2+4x2y3z2)÷
7x2y
2(x-1)2+(3x+3)(3x-2)2(y-z)2-(3y-z)(2y+z)
x2-y2(d-n)(x-y)-(d-n)(x-y)
a2+12ax+36x29+36(a+q)+36(a+q)2
c3-81cx4-1
20a-70a46abc+60b2
6p(2+a)+8q(2+a)2(2+a)-m(2+a)
9-4x248x2-27y2
49x2-25(x-4y)2-(x+10y)2
16-56n+49n2(m+n)2-12m(m+n)+36m2
64y2+32y+436a2+12a(x-y)+(x-y)2
x2-9x+14x2+4x-21
5x2+41x+825-25m2
(-2x3y3)3•(-xy3)3(5a-6b)(a-b)
2x(x+3)(x-4)(x-y+1)2
9.2×
8.85042
(8a)3•b3÷
14a2b2(x2y2-x2y4z3)÷
9xy
2(x-1)2-(3x+1)(2x-3)(y+z)2-(4y+z)(4y-z)
49x2-4y2(q-d)(4x+y)-(q-d)(6x-5y)
a2+14ab+49b236+24(n-b)+4(n-b)2
d3-49dx4-81
15a+10a4ab3c+20b
8p(y-6)-24q(y-6)6(y-6)-m(y-6)
36-49y248x2-27y2
49b2-169(2x-2y)2-(5x+y)2
16+80n+100n2(x+y)2-10m(x+y)+25m2
100x2+100x+254a2+4a(m+n)+(m+n)2
x2-6x+9x2+2x-35
16x2+64x+6049-100y2
(-2xy)2•(xy3)2(a+b)(a+b)
2x(x-5)(x+3)(x-5y+2)2
2.4×
1.620052
(6a)3•b2•18ab(x2y4+2x2y4z3)÷
(x+1)2+(2x+1)(3x+5)(y+z)2-(3y+z)(2y-z)
9x2-64y2(p-c)(4x+y)-(p-c)(6x+y)
a2+20ay+100y216-16(q-c)+4(q-c)2
c3-4cx4-16
80a-50a4ab2c+90b
18q(x+6)-24q(x+6)2(x+6)+m(x+6)
4-36x264x2-36y2
0.49x2-64(x+y)2-(x-y)2
4-12b+9b2(a+b)2+10m(a+b)+25m2
81a2+162a+8125a2+10a(m+n)+(m+n)2
x2-10x+21x2-7x-8
10x2+21x+916-9a2
(3xy3)2•(-x3y3)3(a-2b)(a+b)
2x(x+4)(x-5)(6x+y-1)2
8.3×
7.77972
(7a)2•b4•20a2b2(3x2y3-4x2y3z4)•9xy
4(x+1)2-(3x+2)(3x-5)3(y+z)2-(4y+z)(2y+z)
x2-y2(a+p)(x+y)+(a+p)(x-3y)
a2+4am+4m29+12(m-c)+4(m-c)2
a3-100a16x4-81
15a+90a48a4bc-30b4
12q(4-b)-8p(4-b)8(4-b)+m(4-b)
36-36m248x2-3y2
0.64m2-400(7x-y)2-(9x+10y)2
4+40a+100a2(a+b)2-12m(a+b)+36m2
16x2+64x+649a2-6a(m+n)+(m+n)2
x2-8x+16x2+5x-6
8x2-34x+219-64y2
(2x3y2)2•(xy3)3(a-b)(3a+b)
-3x(x+4)(x+2)(4x-y+3)2
4.4×
3.68992
(7a)2•b3•12ab2(x3y4-7x3y2z2)÷
2x2y
(x+1)2+(2x+1)(3x+5)(y-z)2-(3y-z)(2y+z)
16x2-49y2(c+n)(2x-5y)-(c+n)(5x-y)
a2+20an+100n29-18(n-c)+9(n-c)2
b3-25b81x4-81
40a-40a4b2a2b3c-70bc
18q(3-a)-4p(3-a)6(3-a)+m(3-a)
25-64x22x2-8y2
9m2-121(x-y)2-(4x+9y)2
25-90x+81x2(x-y)2+8m(x-y)+16m2
100a2+140a+4936a2-12a(x+y)+(x+y)2
x2+5x+6x2-3x-28
12x2-36x+2425-36y2
(2x3y)3•(xy)2(5a+b)(3a+6b)
-3x(x-5)(x+4)(4x+y-3)2
4.3×
3.71962
(8a)3•b4•16ab(2x3y2+8x3y4z4)÷
2xy2
2(x+1)2+(3x+5)(4x-5)4(y+z)2+(2y+z)(2y-z)
x2-36y2(m+d)(6x-4y)+(m+d)(2x+3y)
a2-4ab+4b24+16(p+c)+16(p+c)2
d3-16dx4-1
90a3-50ab12a4bc+80b3c
8q(y+8)-32q(y+8)2(y+8)+m(y+8)
36-49y250x2-18y2
0.25m2-36(x+y)2-(2x+y)2
81-162n+81n2(m+n)2+12m(m+n)+36m2
64y2+96y+3616a2+8a(x-y)+(x-y)2
x2+11x+30x2-7x-30
3x2-38x+801-4a2
(-3x2y3)2•(-x2y)3(4a-b)(a-4b)
-3x(x+5)(x+1)(x-y-2)2
70.3×
69.71992
(5a)2•b3÷
6a2b(x4y2+7x3y4z4)•xy2
3(x+3)2-(2x+3)(2x-1)2(y+z)2-(4y+z)(4y+z)
100x2-y2(b-m)(x+3y)-(b-m)(3x-3y)
a2+8an+16n225-50(b-p)+25(b-p)2
d3-81d16x4-16
70a2+70a216a3bc-90b3
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