初中八年级数学上册整式的乘法和因式分解练习题67Word文件下载.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67Word文件下载.docx
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a2+16ay+64y216-56(d+m)+49(d+m)2
b3-100b16x4-16
95a2-70a38a2bc+50b4c
4q(6+a)+4q(6+a)8(6+a)-m(6+a)
36-100y248x2-3y2
16m2-81(x-y)2-(8x+8y)2
49+42m+9m2(a-b)2-6m(a-b)+9m2
64x2+96x+3636a2-12a(a-b)+(a-b)2
x2-16x+63x2+5x-6
12x2+29x+1536-81m2
(2x2y)3•(xy3)3(a-b)(a+5b)
3x(x-5)(x+4)(x+y+1)2
40.1×
39.93992
(7a)2•b3÷
16ab(5x2y2-x3y2z2)÷
x2y
(x+4)2+(3x-4)(3x-5)(y-z)2-(2y-z)(2y-z)
4x2-y2(n-a)(2x+y)-(n-a)(3x+y)
a2-16ab+64b24-12(c+n)+9(c+n)2
d3-4dx4-256
55a3+50a22abc+90b3c
12p(y+1)-24p(y+1)4(y+1)+m(y+1)
49-64b2100x2-100y2
0.25y2-9(x-y)2-(7x+9y)2
25-60y+36y2(m-n)2+12m(m-n)+36m2
9m2+12m+44a2+4a(x-y)+(x-y)2
x2+6x+8x2-8x-20
9x2-21x+109-25y2
(3x3y)2•(xy3)3(a-3b)(a+2b)
3x(x-5)(x-5)(x+y-4)2
30.3×
29.769972
(8a)2•b3÷
10a2b2(2x4y2-x3y2z4)÷
xy2
(x+1)2-(4x+5)(2x-1)4(y-z)2+(2y+z)(3y+z)
x2-y2(n-d)(x+6y)-(n-d)(x-2y)
a2+20ab+100b225+40(b-q)+16(b-q)2
a3-49ax4-1
80a-100a4b18ab2c-50b3c
2q(y+9)+8q(y+9)8(y+9)+m(y+9)
4-81n22x2-2y2
25a2-81(x-2y)2-(5x+y)2
81+144x+64x2(x-y)2-10m(x-y)+25m2
64a2-80a+254a2-4a(x+y)+(x+y)2
x2+14x+45x2+6x-27
5x2-14x+936-64m2
(2x3y2)3•(-x3y)2(6a+b)(a-2b)
-2x(x+1)(x+3)(x-y+3)2
5.2×
4.87022
(3a)3•b2÷
6a2b(x3y3-x4y2z4)÷
xy
(x-3)2-(4x-3)(3x-5)(y-z)2-(2y+z)(3y-z)
x2-4y2(a-n)(3x+y)+(a-n)(x-6y)
a2+6ab+9b225-20(b-n)+4(b-n)2
d3-36dx4-16
60a+50ab10a3b2c-20bc
4q(x-1)+16p(x-1)2(x-1)+m(x-1)
81-25y218x2-8y2
36m2-289(4x-y)2-(x+9y)2
4+36y+81y2(a-b)2-4m(a-b)+4m2
16n2+48n+3616a2+8a(m+n)+(m+n)2
x2-11x+18x2-8x-9
3x2+13x+10100-25n2
(2xy3)2•(x3y)3(3a+b)(3a-5b)
3x(x-4)(x-2)(6x-3y-1)2
90.3×
89.730032
(4a)2•b2÷
20a2b2(2x4y2-5x3y4z4)•x2y
4(x+4)2+(4x+5)(3x+4)(y+z)2-(2y-z)(3y+z)
16x2-y2(b+m)(5x-5y)+(b+m)(6x-y)
a2-12ax+36x236+36(n-a)+9(n-a)2
b3-25bx4-256
85a3-20a2b2a4bc+100bc
18q(x+9)+40p(x+9)2(x+9)-m(x+9)
49-25a236x2-100y2
0.09a2-169(5x+3y)2-(6x-y)2
9-60y+100y2(m+n)2-6m(m+n)+9m2
81b2+180b+10016a2+8a(x-y)+(x-y)2
x2-12x+32x2+5x-14
2x2-16x+3216-25x2
(-2x3y2)3•(-x2y3)2(a+3b)(6a+2b)
2x(x+4)(x+5)(x-y-3)2
70.3×
69.77052
(9a)2•b3÷
12ab(6x4y3+x3y3z2)•x2y2
2(x-2)2+(4x+1)(2x-5)(y+z)2+(2y+z)(2y-z)
64x2-25y2(q-a)(3x-6y)-(q-a)(x-2y)
a2-8ab+16b29+42(q+b)+49(q+b)2
c3-25c81x4-16
20a+60a38a2bc+10b4c
6p(9-b)-40p(9-b)2(9-b)-m(9-b)
25-4n24x2-16y2
0.09n2-36(x+4y)2-(x-y)2
64+32n+4n2(a+b)2+8m(a+b)+16m2
81y2+162y+8116a2+8a(m+n)+(m+n)2
x2+9x+20x2-5x-14
15x2-37x+184-9x2
(-3xy)3•(x3y3)2(2a+6b)(a+b)
-3x(x+2)(x-1)(x-2y-2)2
2.1×
1.979982
(9a)2•b4•12ab(x2y3+x2y4z3)•xy2
(x-1)2-(4x+2)(2x-4)3(y-z)2+(3y+z)(3y+z)
x2-y2(c+p)(5x-4y)+(c+p)(x-y)
a2+16am+64m225+30(a+n)+9(a+n)2
a3-100a81x4-81
50a+80a14a2bc+100b4
6p(7-a)+8q(7-a)4(7-a)-m(7-a)
49-81a250x2-50y2
64n2-1(4x-2y)2-(3x-7y)2
9+36b+36b2(m-n)2-12m(m-n)+36m2
4x2+36x+8116a2-8a(x-y)+(x-y)2
x2+11x+18x2-6x-27
20x2-47x+2181-64m2
(3x2y)3•(xy)3(6a+b)(a+4b)
-2x(x+1)(x+3)(x+y-1)2
80.4×
79.68952
(8a)3•b2•4ab2(5x3y2+x2y2z3)•7xy
2(x+3)2+(3x+3)(4x+4)(y-z)2-(4y+z)(4y-z)
100x2-y2(c-n)(x+y)-(c-n)(x+4y)
a2+20ab+100b29-42(d+q)+49(d+q)2
a3-100ax4-16
15a4-20a3b2ab2c+70b
20p(y-9)-20q(y-9)4(y-9)-m(y-9)
64-9y227x2-3y2
0.36a2-25(3x+y)2-(3x+y)2
4+16b+16b2(m-n)2-4m(m-n)+4m2
49m2+140m+1009a2+6a(m-n)+(m-n)2
x2-7x+12x2+5x-36
12x2-43x+354-36a2
(3x2y)2•(xy2)3(a+6b)(a-5b)
-3x(x+3)(x-2)(6x+6y+3)2
4.1×
3.92042
(5a)3•b3•14ab2(x2y3-x3y3z2)•6xy2
(x-1)2-(3x+4)(2x+5)2(y-z)2+(3y-z)(2y+z)
81x2-9y2(a-n)(3x-2y)+(a-n)(4x+6y)
a2-10an+25n236-84(b-n)+49(b-n)2
d3-64dx4-1
90a3-80a4b4abc-90b3
6q(5-a)-32p(5-a)2(5-a)-m(5-a)
1-9a24x2-36y2
0.49a2-169(5x-4y)2-(8x-y)2
100+40a+4a2(x+y)2-10m(x+y)+25m2
100m2+20m+19a2+6a(m-n)+(m-n)2
x2-4x+3x2+5x-36
3x2-14x+825-36y2
(-2x3y3)2•(-xy3)2(5a-b)(a-2b)
2x(x+3)(x+2)(6x-y+1)2
1.4×
0.6100032
14ab2(x3y2+7x2y4z3)•xy
2(x+3)2-(4x-4)(2x-4)(y+z)2+(3y-z)(4y+z)
4x2-16y2(c+q)(x-y)-(c+q)(3x+y)
a2+20ay+100y225-70(c+m)+49(c+m)2
c3-9cx4-1
55a+40a310ab2c+100b
8q(y+1)-32p(y+1)6(y+1)+m(y+1)
81-25n2100x2-100y2
81n2-289(5x-2y)2-(x-10y)2
9-30x+25x2(x+y)2+6m(x+y)+9m2
4b2-12b+94a2+4a(a+b)+(a+b)2
x2+12x+27x2+5x-50
5x2+33x+1836-100m2
(2x3y)3•(-xy3)3(2a-4b)(5a-b)
-2x(x+2)(x-5)(4x+4y-2)2
30.4×
29.620022
(7a)2•b4•10a2b(8x3y3+5x4y3z3)•8x2y
3(x-4)2+(2x+4)(4x+4)(y-z)2-(2y-z)(3y+z)
x2-4y2(c+p)(x+y)-(c+p)(3x-y)
a2-8ay+16y225-50(c-p)+25(c-p)2
a3-36ax4-256
100a2+100a6a3b3c-50b
14q(y+8)-12p(y+8)2(y+8)-m(y+8)
9-4x2100x2-64y2
0.64b2-196(x+4y)2-(x-8y)2
81+72m+16m2(x-y)2-10m(x-y)+25m2
16n2+40n+2516a2+8a(m+n)+(m+n)2
x2-18x+81x2-8x-20
5x2+35x+30100-100n2
(-2x3y)2•(-xy3)2(a-3b)(3a+b)
-3x(x+5)(x-4)(x-2y+4)2
70.4×
69.64002
(6a)2•b3•6ab2(9x2y2+x4y3z2)•6xy
(x-1)2-(4x-4)(4x-2)(y+z)2+(2y+z)(2y+z)
x2-49y2(n+b)(x-2y)-(n+b)(6x+y)
a2+10am+25m216-24(a+p)+9(a+p)2
d3-64d81x4-1
60a+20a414ab3c-70b
10q(x-4)+36p(x-4)6(x-4)+m(x-4)
49-16b275x2-12y2
0.04b2-36(x+5y)2-(8x-7y)2
49-112a+64a2(x+y)2+12m(x+y)+36m2
100m2-160m+6416a2-8a(m+n)+(m+n)2
x2-10x+9x2+4x-21
16x2+44x+2481-16a2
(-2xy)2•(x2y2)2(4a+5b)(a-2b)
-2x(x-2)(x-5)(x-4y-3)2
80.1×
79.959992
(6a)2•b3÷
20a2b(7x2y4-8x2y3z4)•4xy2
3(x+3)2-(4x+1)(4x+4)3(y-z)2+(4y+z)(3y-z)
100x2-y2(b-p)(6x+5y)+(b-p)(3x-3y)
a2+20ax+100x236-60(b+q)+25(b+q)2
b3-4bx4-16
100a+20a4b10a3b2c+90b2
6q(1+b)+36p(1+b)2(1+b)+m(1+b)
4-9m250x2-8y2
0.81n2-169(x-y)2-(x+y)2
25+60a+36a2(m+n)2+6m(m+n)+9m2
9x2+6x+125a2-10a(m-n)+(m-n)2
x2+5x+6x2+3x-18
9x2-39x+309-9y2
(-3xy)2•(x2y)2(a+b)(a-6b)
-3x(x+3)(x+3)(x+3y+2)2
9.3×
8.710052
(8a)2•b4•16a2b2(x4y3+x2y3z2)•xy2
4(x+1)2-(4x+1)(2x+2)(y-z)2-(2y-z)(2y+z)
x2-9y2(b+m)(5x+y)-(b+m)(x+3y)
a2+12ax+36x24+12(m-a)+9(m-a)2
b3-64bx4-81
55a+60a36a4bc+80b2c
14p(4-b)+28p(4-b)8(4-b)-m(4-b)
36-25y232x2-8y2
36x2-1(x+y)2-(x+7y)2
36-84a+49a2(a+b)2+12m(a+b)+36m2
16a2-64a+6436a2+12a(m-n)+(m-n)2
x2-12x+36x2+4x-32
15x2+33x+1849-49m2
(-2x3y)2•(-xy2)2(6a-b)(a-6b)
3x(x-4)(x-3)(2x-5y+3)2
50.2×
49.86012
6ab2(7x4y2-4x4y4z3)•xy
(x-1)2+(2x+2)(2x-1)(y-z)2-(4y+z)(2y-z)
4x2-100y2(c-p)(x-y)+(c-p)(x+y)
a2+8ay+16y29-30(n+c)+25(n+c)2
a3-64ax4-1
25a+100a3b10ab3c+70bc
16p(9+a)-12p(9+a)8(9+a)+m(9+a)
4-64a216x2-36y2
36x2-25(9x-2y)2-(x-y)2
64+32y+4y2(m+n)2-8m(m+n)+16m2
100b2-180b+8136a2+12a(m-n)+(m-n)2
x2-5x+4x2+6x-40
20x2-50x+2036-4b2
(-3xy)3•(x2y2)3(a+b)(a-3b)
2x(x-2)(x-1)(x+y+3)2
8.780052
(6a)2•b3•20ab(x2y3-9x2y3z4)•x2y2
4(x-2)2+(3x+3)(3x+2)(y+z)2-(2y-z)(4y-z)
16x2-y2(m-b)(4x+y)+(m-b)(x+6y)
a2+12ab+36b24+12(c+q)+9(c+q)2
b3-49bx4-81
80a4+80a
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