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19Word下载.docx
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55a-100a14a4b3c-60b
10q(2+a)-28p(2+a)2(2+a)-m(2+a)
9-9m264x2-100y2
0.64x2-100(8x-y)2-(x-9y)2
16-80x+100x2(a+b)2+4m(a+b)+4m2
4x2-40x+10016a2-8a(a-b)+(a-b)2
x2+11x+24x2-8x-20
2x2-11x+15100-4y2
(3xy3)2•(xy2)3(6a-2b)(2a+b)
2x(x-1)(x-1)(x+6y-2)2
20.2×
19.89982
(9a)2•b4÷
14ab(5x3y4-x3y2z2)÷
9xy2
4(x+1)2+(3x+3)(2x-2)(y+z)2+(3y-z)(3y+z)
x2-y2(b+n)(3x+y)-(b+n)(2x+2y)
a2-18am+81m225+50(b+q)+25(b+q)2
d3-81dx4-16
35a+100a210a3bc-50bc
6q(2+a)+24q(2+a)4(2+a)+m(2+a)
9-49a212x2-3y2
0.64b2-289(2x+y)2-(x-7y)2
16+24x+9x2(a-b)2+6m(a-b)+9m2
100x2+20x+136a2-12a(m+n)+(m+n)2
x2+16x+63x2+7x-8
6x2-39x+541-64y2
(3xy)3•(-x2y)3(4a+b)(a+5b)
-3x(x+5)(x+1)(5x+5y-4)2
5.2×
4.8100042
(4a)3•b2•14ab2(x3y3+x4y4z2)÷
xy2
4(x+2)2+(3x+1)(3x+3)(y+z)2-(3y+z)(3y+z)
64x2-25y2(d+q)(x+3y)-(d+q)(3x-2y)
a2+4ax+4x29-42(b+p)+49(b+p)2
b3-81b16x4-81
5a2-90a8ab2c+50b
16q(x+3)+40p(x+3)2(x+3)+m(x+3)
49-9a218x2-18y2
0.64a2-169(3x-4y)2-(x+9y)2
81+180b+100b2(x+y)2+8m(x+y)+16m2
49a2+112a+6425a2-10a(x-y)+(x-y)2
x2+9x+14x2-4x-32
2x2+28x+9016-4b2
(2x2y)2•(-x2y2)2(5a-b)(3a-b)
3x(x-1)(x+2)(x+y+4)2
2.1×
1.940032
(7a)2•b4÷
2a2b2(x2y2-8x4y3z2)÷
x2y
3(x+4)2+(2x+5)(4x-5)(y-z)2+(4y-z)(4y+z)
x2-25y2(c-p)(4x+6y)-(c-p)(6x+3y)
a2+6ax+9x24-16(b-m)+16(b-m)2
d3-64d16x4-256
60a2+60a4b14abc+40b3c
16p(y-9)-12p(y-9)8(y-9)-m(y-9)
9-49m264x2-16y2
9m2-16(x+3y)2-(2x+10y)2
25-100b+100b2(m+n)2-6m(m+n)+9m2
36m2-120m+1009a2+6a(a-b)+(a-b)2
x2+10x+9x2-6x-16
3x2-15x+1225-100x2
(2x3y)3•(-x3y3)2(2a+b)(a+3b)
3x(x-5)(x+3)(5x-y-3)2
5.3×
4.710032
(2a)2•b2•10ab2(9x4y2+x3y4z2)÷
6x2y2
(x+2)2-(3x+4)(3x-2)3(y+z)2-(2y-z)(2y+z)
25x2-y2(n+a)(6x-6y)+(n+a)(x+5y)
a2+4an+4n24-24(p+c)+36(p+c)2
c3-36cx4-81
25a-30ab6ab3c-70b2
16p(y+9)+24p(y+9)8(y+9)-m(y+9)
100-9b264x2-100y2
0.25y2-196(x+6y)2-(x+y)2
36+36n+9n2(x-y)2+10m(x-y)+25m2
4x2-40x+10016a2-8a(m-n)+(m-n)2
x2-11x+30x2+2x-24
15x2+53x+4236-81b2
(2x3y)3•(xy3)2(2a-b)(5a-2b)
3x(x-3)(x-3)(x+5y-3)2
6.2×
5.830012
(4a)2•b4÷
8ab(x4y3+x3y2z3)•3x2y2
(x+4)2+(4x-1)(3x-1)4(y-z)2-(3y+z)(4y-z)
16x2-100y2(n+c)(6x-y)-(n+c)(x+5y)
a2-12an+36n225-40(b-m)+16(b-m)2
d3-100dx4-1
100a3-90a412abc-40b3
6q(5-a)+16q(5-a)6(5-a)+m(5-a)
9-25x22x2-32y2
0.81y2-361(x-4y)2-(x+y)2
36-72m+36m2(x+y)2-8m(x+y)+16m2
81a2+180a+10016a2+8a(m-n)+(m-n)2
x2-10x+25x2+5x-50
2x2+24x+709-49a2
(-2x3y2)2•(-xy3)2(a-3b)(3a-2b)
-2x(x-5)(x-4)(x+y+3)2
8.4×
7.629952
16a2b(x4y3-x2y3z3)•6x2y
3(x-2)2-(3x-4)(2x-3)(y-z)2+(4y-z)(3y+z)
4x2-100y2(n+c)(4x+y)-(n+c)(x-4y)
a2+14ab+49b29+30(q-b)+25(q-b)2
a3-16a81x4-256
40a3-30a4b16a4b2c+100b3c
2p(3+b)+20p(3+b)8(3+b)-m(3+b)
25-81x2100x2-100y2
16b2-324(3x-6y)2-(x-10y)2
36+60n+25n2(m-n)2-4m(m-n)+4m2
36b2+60b+2516a2-8a(a-b)+(a-b)2
x2-14x+48x2+6x-40
2x2+16x+30100-9m2
(3x2y2)2•(-x2y)2(2a+b)(3a+6b)
-2x(x-4)(x-2)(x-5y+4)2
2.2×
1.829962
(6a)2•b3•2ab(x2y2-6x2y3z3)•x2y
4(x-1)2+(4x-3)(4x-1)(y-z)2-(3y-z)(4y+z)
x2-4y2(b-q)(4x-4y)+(b-q)(x-y)
a2+6ab+9b216-40(p+c)+25(p+c)2
c3-9c81x4-16
10a4+70a4b20a2b3c-50b3
6q(3+b)+32q(3+b)6(3+b)-m(3+b)
64-64y24x2-16y2
25a2-121(9x+5y)2-(6x-y)2
4-12a+9a2(m-n)2+6m(m-n)+9m2
9y2+36y+3616a2-8a(m+n)+(m+n)2
x2-15x+54x2+4x-45
4x2+28x+2449-9x2
(-3xy3)2•(-x3y3)3(a+b)(3a-b)
2x(x+4)(x+5)(x-y+2)2
50.4×
49.610032
(6a)3•b3•10a