人教版初二数学上册单项式乘多项式练习题精选59.docx
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人教版初二数学上册单项式乘多项式练习题精选59.docx
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人教版初二数学上册单项式乘多项式练习题精选59
(-4x2)(3x-5)2a(9a+2b)(5x-3y)(-6x)
61
(—ab3-4ab)•—ab3x(3x+4)-3x(3x+3)+x(x+4)
56
(4×108)×(-4×109)(-7a4b)(-3a)(-3x)3(4x4y5)
-7x4•2x2-8y4•(-3xy)(-2x)3•6x2
(-4a)3•(3a)27a3•8a9y2•4y2
(-5x2)(-7x+2)2a(6a-8b)(7x-4y)(-9x)
51
(—ab2-4ab)•—ab2x(4x-2)-x(2x+4)-x(4x+1)
45
(2×105)×(-7×106)(-ab4)(-2a)(-2x)2(-2x2y2)
9x•7x-3y•(-4xy)(-4x)3•3x2
(3a)2•(-3a)27a3•6a4-3y4•6y
(-9x2)(3x-1)-6a(5a+7b)(2x+9y)(-6x)
51
(—ab2+3ab)•—ab2x(3x-4)-2x(2x+4)+2x(x+4)
45
(2×105)×(-2×103)(-6ab3)(-7a)(2x)3(-2x4y2)
-9x4•9x8y•(-4x4y)(2x)2•4x3
(-2a)3•(4a)2-9a2•3a23y•2y4
(-x4)(8x+5)-6a(2a-8b)(2x-2y)(-7x)
71
(—ab3-2ab)•—ab22x(3x+1)+x(x-4)+x(x+1)
67
(8×108)×(-9×109)(-6ab)(-6a)(-3x)2(4x2y5)
-6x4•7x-9y2•(-7x4y2)(3x)2•3x3
(2a)2•(4a)39a•5a27y•7y
(-3x4)(5x+3)-6a(6a-3b)(6x+3y)(-3x)
21
(—ab2+4ab)•—ab24x(x+2)+x(x+3)-2x(2x-2)
32
(9×109)×(-9×109)(-6ab2)(-3a)(-3x)3(-3x3y4)
6x•4x2-3y4•(-3xy)(3x)3•9x2
(-2a)3•(-4a)38a•7a-4y•8y4
(-x4)(2x+8)-6a(3a+4b)(9x+8y)(-8x)
21
(—ab3+4ab)•—ab3x(x+1)-x(x+1)-2x(2x+3)
32
(8×104)×(-2×106)(-8a3b3)(-9a)(2x)3(4x3y2)
-2x3•4x38y•(-6x4y3)(4x)3•3x4
(-3a)3•(4a)23a2•7a-9y4•3y
(-2x2)(-9x+1)-7a(2a-2b)(6x+2y)(-5x)
41
(—ab3+6ab)•—ab2x(x-2)-x(2x+1)-x(x+2)
34
(3×105)×(-7×107)(-a4b)(-2a2)(2x)3(-4x3y3)
8x4•2x2y3•(-2xy4)(2x)2•5x3
(3a)3•(-3a)2-6a•7a-2y4•9y
(-x3)(-4x+2)4a(9a+7b)(4x-6y)(-6x)
51
(—ab3-3ab)•—ab3x(x+3)-3x(3x-3)-2x(4x+3)
65
(5×108)×(-3×107)(-ab)(-2a3)(2x)3(-2x4y3)
9x3•2x2-2y•(-7xy)(-2x)2•4x3
(-2a)2•(4a)27a4•4a3-2y•3y4
(-5x3)(8x-5)4a(7a+5b)(2x-8y)(-2x)
71
(—ab2+2ab)•—ab3x(3x+3)+2x(x+3)-4x(2x-4)
67
(7×105)×(-7×105)(-ab4)(-4a)(-3x)2(-3x3y3)
-6x4•7x46y4•(-9x2y2)(-3x)3•2x3
(4a)2•(2a)23a•9a-7y4•7y3
(-7x4)(8x-3)4a(9a-4b)(3x-8y)(-4x)
21
(—ab3-4ab)•—ab2x(4x-4)+x(x-2)+x(x-2)
32
(9×104)×(-3×106)(-5ab)(-9a2)(-3x)3(4x4y2)
4x•3x-7y•(-7xy)(2x)3•8x3
(-2a)2•(-3a)32a•4a-3y•4y2
(-4x3)(-6x-9)5a(4a-2b)(4x+7y)(-8x)
71
(—ab2-4ab)•—ab22x(x+1)-4x(x-4)+4x(x+3)
67
(4×108)×(-9×108)(-a2b)(-9a)(-2x)3(3x4y3)
8x4•5x45y•(-2x4y4)(2x)2•3x4
(4a)2•(3a)38a4•3a47y4•4y
(-2x3)(-3x-3)-5a(7a-8b)(4x+5y)(-9x)
31
(—ab3-6ab)•—ab2x(3x+4)-x(x+3)+x(x-2)
43
(6×108)×(-4×103)(-9a3b)(-4a2)(-4x)2(2x4y2)
9x3•2x33y•(-4xy4)(4x)2•7x3
(2a)2•(-2a)3-5a•3a2-4y4•7y
(-6x3)(7x-6)-3a(8a-7b)(3x+5y)(-7x)
21
(—ab3-6ab)•—abx(x+2)-3x(2x+4)+2x(x-4)
32
(8×107)×(-5×107)(-9a3b)(-5a4)(2x)2(-2x2y3)
5x2•4x-3y3•(-9xy)(-2x)3•8x3
(-3a)2•(4a)35a3•2a3-6y2•8y
(-x3)(-7x-7)8a(6a+4b)(5x+6y)(-7x)
41
(—ab2+6ab)•—abx(x+1)+4x(2x-3)+x(3x+2)
34
(8×102)×(-5×103)(-ab)(-3a)(4x)2(-4x2y2)
-4x•8x3y4•(-3x4y3)(-4x)2•2x2
(2a)3•(3a)23a2•3a4y•6y3
(-2x3)(5x-1)-3a(3a+3b)(6x+4y)(-4x)
41
(—ab3+4ab)•—ab34x(4x+1)-x(x-4)+3x(2x+3)
54
(4×102)×(-4×106)(-ab3)(-9a)(-2x)3(2x3y2)
-6x•5x22y2•(-4xy3)(-2x)2•5x3
(-3a)3•(4a)3-2a3•2a4-6y4•5y4
(-x2)(-8x-1)5a(2a-4b)(6x+4y)(-5x)
71
(—ab2-3ab)•—abx(x-1)+4x(x+2)+x(x-1)
67
(2×109)×(-5×109)(-a4b2)(-7a4)(-4x)2(-4x2y4)
-9x2•2x3-9y•(-8x3y)(-4x)2•6x2
(3a)3•(-4a)2-5a2•3a-4y•9y2
(-x3)(-7x+4)-7a(3a-9b)(2x-8y)(-9x)
31
(—ab3+2ab)•—ab3x(3x-3)-x(x+4)+x(x-4)
43
(6×102)×(-6×102)(-6a4b4)(-8a)(-3x)3(2x3y5)
4x•3x4-6y4•(-2xy)(4x)2•4x2
(-4a)2•(-2a)3-8a3•7a39y2•7y2
(-9x4)(5x+6)8a(6a-8b)(8x-7y)(-5x)
71
(—ab3+2ab)•—ab23x(x+4)-2x(2x-1)-x(4x+2)
67
(4×107)×(-5×104)(-7ab2)(-9a3)(4x)3(4x2y2)
8x4•4x2y•(-7xy)(4x)3•4x3
(4a)2•(-3a)22a2•8a9y2•4y2
(-3x2)(-2x-9)6a(8a-3b)(3x+9y)(-3x)
51
(—ab3-3ab)•—ab3x(2x-3)+3x(x+1)-4x(x+3)
65
(3×102)×(-3×105)(-a2b)(-4a)(3x)2(2x2y2)
-7x4•2x-2y•(-3xy2)(4x)2•8x4
(3a)3•(-3a)2-3a•6a8y4•3y4
(-9x4)(-4x-3)9a(2a-3b)(5x+9y)(-4x)
51
(—ab2+2ab)•—ab2x(x-2)-x(x+3)+x(x+2)
45
(3×106)×(-7×106)(-a3b)(-8a3)(3x)2(3x3y3)
4x•7x3y3•(-8xy3)(-3x)3•7x4
(2a)2•(-2a)2-6a3•7a-5y4•4y
(-4x3)(-8x+9)-6a(5a-9b)(3x-4y)(-5x)
41
(—ab2+2ab)•—ab34x(4x-2)-x(3x-2)+x(x-4)
54
(7×109)×(-9×109)(-ab)(-5a)(-3x)2(-3x4y3)
-3x2•8x-5y2•(-8x2y3)(-4x)3•7x2
(-2a)2•(-4a)3-2a•6a2-8y•2y
(-7x4)(9x+9)-3a(6a+5b)(3x+9y)(-4x)
51
(—ab2+6ab)•—abx(x-2)-x(x+4)-x(3x-4)
65
(2×105)×(-9×105)(-ab)(-2a)(-2x)2(-2x2y4)
-5x2•4x2-2y•(-3x3y2)(4x)2•4x4
(-3a)3•(4a)38a•9a-7y•8y
(-7x4)(2x+1)9a(3a-2b)(5x+8y)(-2x)
31
(—ab2-3ab)•—abx(x+3)+x(4x+4)+4x(x-1)
43
(8×109)×(-4×104)(-ab3)(-5a3)(2x)2(-4x4y2)
-9x•8x4-2y•(-6x4y3)(-4x)3•3x4
(3a)3•(2a)2-2a•6a43y3•9y
(-x3)(4x+7)-4a(3a-8b)(2x+2y)(-6x)
41
(—ab3+4ab)•—ab23x(2x-4)+x(4x+2)-4x(3x-2)
54
(9×106)×(-3×104)(-ab)(-9a4)(4x)3(4x3y5)
-9x•8x-8y•(-4xy2)(-3x)2•8x3
(-2a)2•(-3a)3-3a•6a-4y•9y
(-9x4)(-9x+1)5a(7a+4b)(4x-9y)(-5x)
71
(—ab3+3ab)•—abx(4x-3)+x(x+2)-x(x+3)
67
(3×102)×(-8×107)(-ab)(-6a)(-2x)3(-4x2y4)
8x3•6x23y3•(-3x3y4)(-2x)3•3x3
(4a)3•(-4a)2-2a4•9a2-2y3•9y
(-x4)(-5x+9)2a(8a+5b)(5x+5y)(-3x)
51
(—ab2+6ab)•—abx(x-1)-x(x-2)+2x(x+3)
65
(4×103)×(-5×105)(-ab)(-5a4)(-4x)3(-3x3y5)
-7x•3x-4y•(-7xy3)(-2x)3•2x2
(-2a)3•(3a)37a•2a3-2y•5y3
(-x3)(-2x+7)-3a(4a+4b)(2x-4y)(-7x)
61
(—ab3-5ab)•—abx(x-2)-x(2x+4)-x(x-1)
56
(4×109)×(-5×106)(-3ab)(-3a)(-4x)2(-2x3y2)
-9x2•9x-6y•(-8xy4)(-4x)2•4x3
(-4a)2•(3a)3-7a4•9a-9y3•7y3
(-x2)(-2x-7)7a(7a+7b)(6x+2y)(-8x)
51
(—ab2-2ab)•—ab3x(4x-1)-3x(x+1)-x(2x+1)
45
(8×106)×(-5×107)(-8a4b2)(-8a4)(4x)2(3x3y4)
8x4•4x45y4•(-8x3y)(3x)3•8x4
(-2a)2•(3a)2-7a2•6a5y•5y4
(-x4)(8x-6)8a(7a-4b)(2x+9y)(-5x)
41
(—ab2-5ab)•—ab2x(2x+1)-x(3x-4)-2
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