人教版初二数学上册单项式乘多项式练习题精选49Word下载.docx
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(-8×
104)(-ab4)(-8a2)(4x)3(3x4y5)
3x2•5x7y2•(-8x3y4)(-2x)2•9x2
(-2a)2•(-4a)39a2•6a4-3y4•8y2
(-6x2)(-9x-2)2a(2a+5b)(2x+7y)(-8x)
41
(—ab3-2ab)•—ab2x(x-2)-x(4x-4)-x(2x+1)
54
(4×
103)×
107)(-9a2b)(-5a2)(4x)2(2x4y5)
-8x•9x42y•(-4xy)(-4x)3•2x2
(-3a)2•(3a)25a2•2a4-6y3•8y
(-5x3)(5x-4)-5a(8a-3b)(5x-3y)(-2x)
(—ab2+5ab)•—ab33x(x-3)-4x(x+1)-x(3x+3)
102)×
107)(-9ab)(-4a)(-4x)2(2x4y4)
9x2•6x3-3y•(-3xy)(4x)2•2x4
(4a)2•(-2a)32a•4a7y2•8y4
(-7x3)(-9x+7)-2a(2a-2b)(2x+2y)(-2x)
(—ab3-3ab)•—abx(x+4)-3x(3x-4)+x(2x+1)
(3×
106)×
(-4×
102)(-4ab)(-5a3)(-4x)2(-3x4y4)
9x2•7x33y2•(-7x3y2)(4x)2•4x3
(3a)2•(4a)35a2•7a-5y•9y2
(-x2)(4x+6)-6a(7a-4b)(3x+7y)(-8x)
31
(—ab3-4ab)•—ab3x(x-2)-3x(4x-2)+x(3x+1)
43
102)(-a3b)(-4a2)(-3x)2(-3x2y2)
9x•2x-2y4•(-3x3y)(-2x)2•3x3
(-4a)3•(4a)2-9a4•7a35y•5y
(-5x2)(-8x-5)6a(5a-5b)(5x-9y)(-9x)
(—ab3-2ab)•—ab2x(x+2)-3x(x-4)+x(4x+3)
107)×
(-7×
108)(-ab)(-4a)(2x)2(-3x4y3)
-3x2•4x47y•(-9xy)(2x)2•6x4
(-3a)3•(4a)2-2a•9a2-5y4•7y3
(-2x4)(-2x-6)-5a(9a+8b)(9x-8y)(-4x)
61
(—ab3+6ab)•—ab2x(4x-1)+x(x+3)+x(x-1)
56
(9×
(-9×
108)(-a4b)(-6a)(-3x)2(-3x2y4)
6x•6x2-5y3•(-3xy)(4x)3•6x4
(-3a)2•(3a)34a2•7a37y3•9y
(-x3)(-6x+2)-8a(4a-3b)(9x-4y)(-3x)
(—ab3-2ab)•—ab3x(x-1)+2x(x+2)+x(4x+2)
109)(-3a2b)(-2a3)(2x)3(2x2y3)
-2x•6x2y3•(-8x2y3)(-3x)2•3x3
(2a)2•(-4a)25a•2a9y2•2y2
(-6x4)(6x+4)5a(3a-6b)(2x-6y)(-4x)
(—ab3+6ab)•—ab3x(3x-3)-x(3x-3)-x(x-2)
108)(-5ab2)(-2a2)(-3x)3(2x3y4)
3x•7x47y4•(-9x2y)(2x)3•4x3
(-4a)2•(2a)2-6a•2a4-8y•8y
(-x2)(2x-4)-6a(9a-3b)(5x+5y)(-9x)
(—ab3+3ab)•—abx(x+3)+3x(4x-1)-x(4x+4)
65
(6×
107)(-3a4b)(-2a)(-2x)3(2x4y2)
-3x2•4x26y2•(-6x4y)(-4x)3•8x3
(4a)3•(2a)29a3•3a-7y•2y
(-x4)(-8x+4)8a(3a-2b)(2x-4y)(-9x)
21
(—ab3-4ab)•—abx(3x-4)-4x(x-3)-4x(x-2)
32
109)(-9a4b)(-6a4)(-3x)2(2x4y5)
5x4•7x-6y•(-2x2y)(3x)2•4x3
(4a)2•(4a)22a•4a2-3y•8y2
(-3x3)(6x+6)5a(7a+8b)(9x-3y)(-6x)
(—ab2-3ab)•—abx(2x-2)-x(x-1)+4x(3x-4)
(8×
(-3×
102)(-ab)(-9a3)(-2x)3(-4x3y3)
5x•4x2-6y3•(-2xy3)(-2x)2•7x2
(-2a)3•(-3a)36a•2a-4y•9y
(-5x3)(-2x+2)7a(3a-7b)(8x+3y)(-2x)
(—ab3-3ab)•—abx(x+3)-x(x+1)-x(x+1)
107)(-a2b2)(-4a4)(-3x)3(-2x4y5)
8x3•6x25y3•(-7x3y)(-4x)2•9x4
(4a)2•(-3a)2-6a•8a4-3y•5y3
(-2x4)(6x+9)-9a(5a+8b)(7x+3y)(-9x)
(—ab2-6ab)•—ab33x(3x-2)+4x(2x-2)-x(3x-2)
(-6×
107)(-8a4b)(-8a3)(2x)2(3x4y2)
-9x2•2x-9y•(-4xy3)(4x)2•7x2
(-4a)3•(2a)34a2•9a9y2•2y
(-x4)(6x+1)7a(2a-9b)(3x-9y)(-5x)
(—ab2-3ab)•—ab34x(4x+1)+2x(x-4)+x(4x-4)
106)(-ab4)(-2a4)(2x)2(3x2y3)
8x3•2x2-9y•(-3x3y)(-4x)3•7x4
(2a)3•(3a)3-3a•7a5y3•8y
(-x3)(2x-7)-7a(9a+4b)(5x-8y)(-3x)
(—ab3-6ab)•—abx(x-2)-x(x+4)+x(3x-1)
109)(-ab4)(-6a2)(3x)2(-4x3y2)
8x•5x2-9y3•(-3xy4)(-2x)2•4x4
(-3a)2•(-4a)3-4a•9a-4y•9y2
(-x3)(-5x+6)8a(8a-2b)(4x-4y)(-9x)
(—ab3+5ab)•—ab3x(x+4)+x(x-2)+2x(x-2)
104)×
109)(-3ab3)(-3a2)(-3x)2(-2x3y3)
-9x3•6x3-9y4•(-5xy)(-3x)3•5x4
(3a)3•(-3a)2-9a4•7a6y•8y
(-x3)(-8x-3)9a(8a+7b)(6x-6y)(-4x)
(—ab2-3ab)•—ab33x(x+2)+x(3x-4)-4x(2x-1)
(7×
105)×
103)(-6ab2)(-8a)(-2x)2(3x2y4)
-7x•5x2-3y•(-5xy4)(2x)3•8x2
(-4a)3•(2a)27a2•3a3-6y•2y3
(-x2)(-2x-1)8a(4a+3b)(7x+8y)(-5x)
(—ab2-2ab)•—ab2x(x-1)+x(x+2)-x(2x+3)
106)(-ab)(-3a)(3x)3(-2x3y5)
-3x•7x39y•(-6x4y4)(-3x)2•4x2
(3a)3•(2a)2-4a•7a2-4y•9y
(-5x2)(-5x+3)9a(4a-8b)(6x-8y)(-5x)
(—ab3+2ab)•—ab2x(x-2)-x(x-4)+x(x+4)
34
104)(-a2b4)(-5a4)(2x)2(-2x2y2)
7x2•2x3-9y•(-8x2y2)(4x)2•8x4
(-4a)3•(4a)3-8a4•7a26y2•6y4
(-4x4)(-6x-8)-7a(8a+7b)(8x-3y)(-8x)
(—ab3+3ab)•—abx(4x-3)+x(4x-2)+2x(3x-1)
103)(-6ab2)(-4a2)(2x)2(4x2y3)
4x4•7x46y•(-3x2y4)(-4x)3•8x3
(3a)3•(2a)24a4•7a-3y4•4y2
(-5x2)(-5x-2)3a(9a+4b)(2x-6y)(-2x)
(—ab2+3ab)•—abx(x+4)-x(2x+3)+x(x-1)
105)(-8ab2)(-8a)(-4x)3(3x4y3)
-6x•5x4-3y2•(-6xy4)(-3x)2•8x3
(4a)3•(3a)3-7a•2a-9y4•3y3
(-5x2)(-7x-4)-6a(6a-2b)(8x-7y)(-5x)
(—ab3-5ab)•—ab2x(x+4)+x(x-3)+x(x+1)
(-5×
107)(-ab3)(-5a)(-3x)2(-2x3y5)
3x4•6x32y3•(-4x4y4)(4x)3•3x2
(-2a)2•(4a)27a3•8a-8y•3y
(-x3)(6x+9)5a(6a-3b)(7x+9y)(-3x)
(—ab2-2ab)•—abx(x-4)-3x(4x-1)+4x(4x+3)
108)(-ab4)(-3a2)(-4x)3(3x4y3)
2x•9x2y4•(-4xy)(3x)3•8x4
(3a)3•(-4a)2-4a•7a3-9y•4y
(-x4)(9x-6)-7a(3a-9b)(7x-2y)(-6x)
(—ab2+4ab)•—ab2x(x+2)+2x(x-1)+2x(x-3)
104)(-3ab3)(-4a4)(-4x)3(-4x2y3)
3x•6x2-9y2•(-9x3y)(-4x)3•2x3
(-3a)2•(-2a)2-7a•9a4y2•6y
(-x4)(6x-4)9a(6a+9b)(6x+6y)(-3x)
(—ab2-3ab)•—ab3x(x+4)-x(4x+4)+x(4x-4)
102)(-ab)(-4a2)(4x)2(2x2y5)
7x•9x8y•(-6x4y)(4x)2•6x2
(-3a)3•(-2a)28a•5a2-2y2•8y
(-x2)(-9x+9)-3a(4a+9b)(2x+2y)(-9x)
(—ab3-2ab)•—ab2x(3x+2)-x(x+3)+3x(4x+2)
109)(-ab)(-5a)(4x)2(3x2y5)
5x•6x5y•(-3x4y3)(2x)2•5x2
(3a)2•(4a)3-5a•5a8y3•3y
(-3x2)(-9x+5)2a(9a-4b)(9x-5y)(-3x)
(—ab2-3ab)•—abx(3x-1)-2x(x+3)-2x(3x+1)