八年级数学上册单项式乘多项式20Word格式.docx
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41
(—ab2-2ab)•—ab22x(x+4)+4x(3x+2)-x(2x-4)
54
108)×
(-9×
105)(-a2b)(-6a4)(4x)3(-2x3y4)
-2x4•3x47y•(-4xy)(-3x)3•2x2
(2a)2•(-4a)3-7a•7a5y•3y
(-8x3)(4x-6)-8a(8a-2b)(2x+7y)(-2x)
51
(—ab3+4ab)•—ab2x(3x+3)+3x(x-4)-x(x+4)
65
(3×
102)×
(-2×
103)(-a2b)(-9a)(-2x)2(-3x3y5)
6x•7x48y•(-3xy)(4x)3•5x2
(4a)3•(3a)39a•9a-9y2•3y3
(-x4)(-8x+2)-4a(3a-9b)(6x+5y)(-4x)
61
(—ab2-2ab)•—ab3x(3x+3)+x(3x-4)+2x(x+4)
56
(5×
(-5×
108)(-ab)(-6a)(-2x)2(3x4y5)
2x4•9x27y•(-7x3y3)(-2x)2•3x2
(3a)2•(2a)3-4a2•5a37y•8y
(-x4)(5x-9)-5a(4a+9b)(3x-4y)(-8x)
31
(—ab2-5ab)•—ab3x(2x+1)+x(x-4)-3x(2x+3)
43
(6×
107)×
(-3×
107)(-a2b4)(-5a3)(-4x)3(-4x2y4)
-6x4•7x-6y4•(-6x3y)(-2x)3•9x2
(4a)3•(3a)26a3•6a5y•9y4
(-x3)(8x-8)6a(7a+5b)(2x+5y)(-6x)
(—ab3+4ab)•—ab3x(x-1)+x(4x-2)+x(x+1)
(9×
(-6×
109)(-8a2b)(-4a2)(-4x)3(-3x4y2)
8x•4x8y4•(-4x3y2)(-4x)2•9x3
(-4a)2•(3a)26a•9a6y•5y
(-x3)(-8x-9)-8a(7a-9b)(4x+5y)(-8x)
(—ab3+5ab)•—ab3x(3x+1)+x(x+1)+4x(4x+1)
106)×
(-4×
107)(-ab)(-5a3)(2x)3(-2x4y3)
-3x3•3x-6y4•(-2xy)(-4x)2•7x2
(-4a)2•(4a)2-7a•2a-3y2•3y2
(-x3)(3x-6)8a(8a-9b)(7x+9y)(-2x)
(—ab3-2ab)•—ab23x(3x+4)-4x(4x-3)-x(x-1)
109)×
104)(-a4b)(-9a2)(-4x)3(-2x3y5)
7x3•2x2-9y3•(-4xy2)(-3x)2•3x2
(3a)3•(-3a)3-5a•5a-6y•4y3
(-x4)(2x-4)7a(4a-9b)(6x-7y)(-3x)
(—ab3-5ab)•—ab3x(x-4)+x(x-2)-2x(x+1)
(8×
104)×
106)(-a2b2)(-3a2)(4x)2(-2x4y5)
2x•8x3-7y•(-4xy4)(4x)2•4x4
(-2a)3•(-3a)2-5a•6a5y2•8y3
(-4x2)(8x+2)7a(6a-3b)(9x+3y)(-5x)
(—ab3+5ab)•—ab2x(3x-2)-x(2x+4)-3x(x-1)
34
104)(-3ab)(-8a2)(4x)3(2x3y4)
-9x4•6x36y4•(-9x4y)(-2x)2•4x2
(-2a)3•(-2a)23a•2a2y•4y2
(-x3)(-9x+4)-5a(3a+5b)(2x+8y)(-4x)
(—ab2+4ab)•—ab22x(2x+4)-2x(x+4)-x(3x+4)
102)(-ab3)(-8a)(-2x)2(3x3y5)
-4x4•3x3-7y3•(-9xy)(-2x)3•3x4
(-2a)3•(2a)34a2•7a46y•9y
(-2x3)(2x+8)-9a(8a-8b)(4x-7y)(-8x)
(—ab3+5ab)•—abx(x+2)-x(3x+3)+3x(x-4)
104)(-a4b2)(-3a)(4x)2(4x2y2)
-8x4•6x-2y3•(-6x4y2)(-3x)3•6x4
(-3a)2•(-3a)2-4a•8a33y3•6y3
(-x3)(-3x+4)2a(3a-4b)(8x-7y)(-4x)
(—ab3-3ab)•—ab3x(2x+2)-x(4x+2)+x(x-1)
105)×
106)(-2ab)(-3a)(-2x)3(2x4y3)
7x•7x4-9y•(-9x3y3)(2x)3•9x4
(4a)3•(-2a)37a3•8a25y•9y2
(-4x2)(5x+6)5a(6a+2b)(2x-9y)(-5x)
(—ab3-6ab)•—ab32x(3x+4)-2x(x-3)+x(x-1)
109)(-a3b2)(-3a)(2x)2(-4x4y2)
-4x3•7x43y2•(-8x4y)(-2x)2•3x4
(3a)2•(2a)3-4a•7a-6y•6y
(-5x4)(7x-9)-2a(9a-8b)(5x+4y)(-2x)
(—ab3+4ab)•—ab3x(x+1)+x(x-1)-x(2x-3)
(4×
103)(-ab3)(-6a)(-4x)2(-2x2y5)
-7x4•7x5y•(-6x3y)(-4x)3•3x3
(-3a)3•(-4a)2-4a•6a-4y•2y3
(-8x4)(-4x+1)5a(8a-8b)(3x-3y)(-9x)
21
(—ab3-3ab)•—ab3x(x-1)+2x(2x-1)+x(x-3)
32
106)(-8ab4)(-6a)(2x)2(-4x4y5)
9x•6x33y•(-6xy2)(-2x)3•4x3
(-2a)3•(-4a)39a•2a24y2•7y
(-3x2)(7x-6)-9a(2a-5b)(7x+6y)(-7x)
(—ab2-6ab)•—ab2x(x+4)-x(x-4)+x(x-3)
105)(-4ab3)(-6a)(4x)3(3x3y2)
3x•6x9y4•(-4xy3)(4x)2•4x2
(2a)3•(-3a)39a•2a6y4•3y2
(-5x3)(-9x+8)-3a(6a-3b)(4x-2y)(-6x)
(—ab3+5ab)•—ab2x(3x-2)+x(2x+1)-4x(2x-3)
105)(-9ab4)(-2a3)(2x)2(-2x3y3)
8x•2x4-3y•(-8xy)(2x)2•3x4
(2a)2•(-2a)39a4•5a33y2•4y
(-8x4)(-3x-9)-8a(3a-2b)(5x+5y)(-2x)
(—ab3-5ab)•—ab23x(2x-1)+x(x-2)+x(3x-1)
104)(-a2b)(-4a2)(-3x)3(2x4y5)
-6x•5x3-5y3•(-3xy4)(-2x)3•6x4
(2a)2•(3a)29a•8a3y4•3y2
(-x3)(3x-2)7a(5a-6b)(8x-6y)(-9x)
(—ab3+2ab)•—ab34x(x+1)-x(x+3)-x(x+3)
(7×
107)(-2ab2)(-6a)(3x)2(4x4y5)
-8x4•4x-4y2•(-6xy)(-4x)2•4x2
(3a)3•(3a)22a2•5a6y•6y