人教版初二数学上册单项式乘多项式练习题精选51.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51.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51
(-9x3)(-8x-3)-3a(9a+3b)(2x+5y)(-5x)
41
(—ab3-5ab)•—abx(3x-1)+4x(x-1)+x(4x-4)
54
(9×105)×(-2×108)(-3ab3)(-4a)(3x)3(-4x3y4)
4x4•4x6y3•(-3xy2)(3x)3•6x2
(2a)3•(-2a)2-9a2•2a2-7y3•4y3
(-9x3)(-5x-7)6a(7a-2b)(3x+4y)(-8x)
51
(—ab2+5ab)•—ab4x(x+2)-3x(3x-4)-3x(x+3)
65
(4×108)×(-8×105)(-4a4b2)(-8a)(-3x)3(-2x4y4)
3x3•7x2-6y3•(-4xy)(4x)3•4x3
(-4a)3•(2a)37a•5a47y•4y4
(-6x2)(-6x+2)9a(7a+7b)(7x-6y)(-9x)
41
(—ab3+5ab)•—abx(2x+2)+3x(4x+4)+4x(4x+2)
54
(5×105)×(-6×103)(-3a4b2)(-8a3)(2x)2(3x2y2)
7x•8x-4y3•(-8xy)(4x)3•3x4
(-3a)2•(3a)27a•8a-8y2•7y4
(-5x2)(7x-7)-4a(8a-3b)(7x-2y)(-2x)
41
(—ab3-6ab)•—ab22x(x+4)+4x(4x-2)+x(2x-2)
54
(6×109)×(-3×104)(-ab2)(-7a3)(-4x)2(-3x4y4)
8x4•4x45y•(-2x3y)(-2x)3•2x3
(4a)3•(4a)36a•7a6y2•5y4
(-x4)(-7x-6)2a(7a-9b)(6x-7y)(-8x)
41
(—ab2-2ab)•—ab2x(x+3)-x(4x-2)-x(x-4)
34
(6×102)×(-2×105)(-8a4b)(-4a4)(3x)2(-3x2y4)
-8x2•4x39y•(-7x2y)(3x)2•4x4
(-2a)3•(3a)3-8a•4a37y•8y
(-x4)(-9x+4)2a(9a-9b)(9x-5y)(-7x)
41
(—ab3+6ab)•—ab2x(x-3)-2x(x+4)-4x(x+1)
54
(5×102)×(-2×108)(-a3b)(-2a4)(-3x)3(-4x2y4)
3x•7x5y•(-5x3y3)(-2x)2•2x3
(-2a)2•(4a)25a•6a-3y•3y
(-x4)(-4x+3)4a(7a-4b)(5x-5y)(-4x)
41
(—ab2+6ab)•—ab3x(2x+1)+3x(2x+1)+x(3x+1)
54
(2×104)×(-7×104)(-a3b)(-4a4)(4x)3(4x4y5)
-8x•6x45y•(-2xy)(2x)3•5x4
(-4a)3•(4a)35a•5a44y•9y
(-x2)(-3x+5)-2a(8a+7b)(2x+2y)(-4x)
41
(—ab3+3ab)•—ab4x(x-2)+x(2x-1)+3x(x-2)
34
(4×102)×(-5×107)(-9a2b3)(-7a)(3x)3(-4x2y5)
5x2•6x7y4•(-3xy2)(3x)3•3x4
(-3a)3•(2a)3-6a3•9a-2y4•4y
(-8x4)(-8x+4)3a(3a-4b)(9x-2y)(-2x)
31
(—ab2+6ab)•—ab3x(4x-3)+2x(3x+2)-x(2x+2)
43
(4×103)×(-5×107)(-9a2b2)(-9a3)(4x)2(4x4y5)
8x2•5x3-5y•(-7xy2)(2x)2•3x2
(-2a)3•(-3a)27a•9a3-5y•8y
(-x2)(4x+7)8a(6a+6b)(5x-8y)(-7x)
31
(—ab2+2ab)•—abx(2x+2)+x(4x-4)+2x(x-1)
43
(3×102)×(-4×107)(-9ab)(-4a3)(-3x)3(4x4y4)
2x•8x37y•(-8xy)(-2x)3•2x4
(-4a)3•(-4a)2-7a•4a6y•8y
(-x3)(-9x-6)-5a(9a+6b)(8x-5y)(-4x)
31
(—ab2-5ab)•—ab4x(3x-4)+3x(x-2)+x(x+3)
43
(5×102)×(-4×104)(-ab)(-9a2)(-4x)2(-4x3y5)
-4x•9x-8y•(-7x4y)(2x)2•3x4
(-3a)2•(3a)3-7a2•2a3-5y•2y4
(-x4)(3x-6)-7a(8a+2b)(3x-3y)(-9x)
51
(—ab2-6ab)•—ab3x(x-4)+x(x-4)-x(x+1)
45
(7×106)×(-5×103)(-3a4b3)(-2a3)(3x)2(-4x3y4)
-4x•4x5y•(-8x3y)(3x)3•3x3
(-4a)2•(-4a)2-5a3•7a4-6y•8y2
(-x4)(-7x-9)-5a(7a-2b)(4x-5y)(-7x)
71
(—ab3-4ab)•—abx(4x-4)+x(x+3)-4x(4x+3)
67
(3×105)×(-6×106)(-a3b2)(-5a4)(2x)2(4x2y2)
6x•2x37y•(-9x4y)(3x)2•8x4
(-4a)3•(2a)2-9a•9a22y•5y
(-x2)(-9x+3)9a(4a+2b)(7x-7y)(-3x)
31
(—ab2+2ab)•—abx(4x+1)-x(2x+4)-3x(x-2)
43
(4×105)×(-6×107)(-ab4)(-5a)(-4x)2(3x4y2)
2x4•4x3y•(-2xy3)(3x)3•5x4
(2a)3•(-3a)3-6a2•8a3y•4y
(-3x4)(-5x+4)3a(3a-2b)(2x-8y)(-4x)
41
(—ab2-5ab)•—ab2x(x+1)+2x(2x+4)-2x(4x-4)
34
(7×108)×(-2×109)(-3ab)(-8a4)(-2x)3(2x3y3)
-9x3•8x-5y•(-4x3y4)(-4x)3•3x3
(3a)2•(-4a)24a•5a-6y3•3y
(-x2)(-2x+3)-7a(4a+2b)(5x+7y)(-2x)
51
(—ab2+4ab)•—abx(x-3)-2x(2x-3)+2x(4x+3)
45
(4×106)×(-8×109)(-7a3b)(-7a)(2x)2(-2x2y5)
-8x2•2x-8y•(-3xy4)(2x)3•8x3
(2a)3•(2a)34a3•7a4y•5y
(-9x4)(8x-1)-7a(2a+4b)(5x+7y)(-7x)
41
(—ab2+2ab)•—ab33x(3x+4)+x(x-2)+3x(3x-1)
34
(4×106)×(-5×105)(-ab2)(-5a4)(-2x)2(3x4y4)
-9x3•4x-8y•(-8xy)(-3x)2•7x3
(4a)2•(4a)3-9a•6a8y•3y
(-x2)(-3x-2)5a(6a+4b)(5x+8y)(-2x)
51
(—ab2+5ab)•—ab24x(4x+3)+2x(2x+1)-2x(x-3)
45
(4×105)×(-9×103)(-a4b3)(-9a4)(3x)2(-3x2y4)
3x•6x-7y•(-4xy4)(4x)3•4x4
(2a)3•(3a)25a•2a-4y•4y3
(-6x4)(-6x-8)2a(8a-9b)(9x-8y)(-7x)
31
(—ab2-6ab)•—ab33x(3x-1)+x(x+4)-3x(2x-3)
43
(6×103)×(-6×106)(-ab4)(-3a)(4x)2(-4x3y4)
3x•2x3-2y•(-7x2y)(-3x)3•9x3
(-2a)2•(3a)27a•3a-2y2•3y
(-2x3)(-3x+1)-5a(4a+2b)(2x-8y)(-5x)
51
(—ab2-6ab)•—ab32x(3x-2)-2x(4x+2)+x(4x+4)
65
(8×107)×(-7×102)(-2a4b)(-4a)(4x)3(3x4y4)
-2x•9x3-7y•(-4x3y)(3x)3•7x4
(4a)3•(-4a)38a•9a3-9y•3y2
(-x2)(9x+3)2a(5a-4b)(6x-7y)(-6x)
61
(—ab3-4ab)•—ab34x(x+4)-x(x-4)+x(2x-1)
56
(9×105)×(-7×108)(-ab3)(-9a3)(-2x)3(4x4y5)
9x•8x25y•(-3xy2)(4x)2•2x3
(4a)2•(-2a)34a3•2a3y•7y3
(-x2)(-3x+6)-7a(7a-3b)(6x+7y)(-2x)
21
(—ab3+2ab)•—abx(x+4)-4x(x-4)+3x(x+3)
32
(6×103)×(-3×104)(-a2b4)(-5a)(4x)2(4x2y3)
5x4•9x5y•(-9x3y)(4x)2•2x2
(3a)2•(-2a)3-5a4•6a-4y2•4y
(-2x3)(8x+1)-6a(5a-9b)(5x+6y)(-7x)
31
(—ab3-2ab)•—abx(x+4)+4x(3x-4)+x(3x-2)
43
(4×106)×(-4×109)(-4a3b)(-3a)(-4x)3(2x4y5)
-4x•4x6y•(-9xy2)(3x)2•2x4
(-3a)3•(2a)23a3•3a-5y•3y
(-x3)(-3x+7)-8a(3a+2b)(2x+5y)(-3x)
51
(—ab3+4ab)•—abx(x-4)-x(x+2)+2x(3x+4)
45
(6×107)×(-7×104)(-4a2b)(-5a)(-2x)2(2x4y4)
7x3•7x-8y•(-9x4y)(4x)3•6x3
(2a)2•(2a)3-9a3•8a-8y•6y
(-x4)(-4x-1)7a(7a-4b)(7x+7y)(-7x)
41
(—ab2+5ab)•—ab34x(3x+3)+x(x-1)-2x(2x-3)
54
(7×104)×(-8×105)(-a2b)(-6a)(-3x)3(4x2y4)
9x3•6x3-3y3•(-3x4y2)(-2x)2•2x4
(-4a)2•(2a)23a•7a3-3y•6y
(-x2)(5x-7)9a(2a-3b)(7x+5y)(-8x)
41
(—ab3-5ab)•—ab23x(2x-3)+3x(x+3)+3x(x-4)
54
(5×109)×(-8×107)(-9ab)(-3a)(4x)2(-3x2y4)
4x4•9x3-8y4•(-5x3y4)(-2x)3•4x4
(4a)3•(-2a)32a4•9a2y2•2y
(-5x3)(-8x-1)-9a(6a-3b)(8x-5y)(-3x)
51
(—ab2-5ab)•—abx(2x-4)+2x(2x+4)-x(x-2)
65
(8×105)×(-8×105)(-ab)(-7a2)(2x)2(-3x4y2)
7x•4x3y•(-7x3y)(-4x)3•9x2
(2a)3•(-4a)27a•3a45y•9y2
(-x3)(-7x-2)-3a(8a+9b)(2x-3y)(-7x)
41
(—ab2+3ab)•—ab34x(x+1)-x(4x-4)-x(2x-1)
54
(2×106)×(-8×109)(-6a3b)(-3a3)(4x)2(-3x3y5)
8x4•6x-9y2•(-5xy)(-2x)2•4x2
(-4a)2•(-2a)25a4•6a4-9y•8y2
(-9x2)(-2x-4)3a(2a-7b)(3x-2y)(-7x)
31
(—ab2+2ab)•—ab4x(3x-4)+3x(x+3)+x(x+1)
43
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