人教版初二数学上册单项式乘多项式练习题精选39.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39.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39
(-6x3)(6x-5)-6a(4a-4b)(2x-5y)(-4x)
61
(—ab2+5ab)•—ab33x(3x+3)+x(2x-4)-x(x-4)
56
(2×109)×(-2×106)(-ab3)(-8a2)(2x)2(2x3y2)
3x•4x9y•(-8xy4)(3x)3•2x3
(-4a)3•(-2a)34a2•8a2-2y3•3y
(-5x2)(-3x-5)-4a(6a-6b)(7x+7y)(-9x)
41
(—ab2-3ab)•—ab23x(x-4)+3x(2x-1)+4x(3x+1)
34
(4×102)×(-4×108)(-ab)(-6a)(-2x)2(-3x3y4)
-7x•4x2-3y•(-2x4y2)(2x)2•8x2
(-3a)3•(-3a)24a•5a46y3•3y3
(-9x2)(-4x-4)7a(9a-7b)(8x+6y)(-6x)
31
(—ab3+2ab)•—abx(4x+4)-3x(x-4)-x(x-1)
43
(8×107)×(-7×109)(-ab)(-3a3)(2x)2(-3x2y2)
-8x•8x35y•(-9xy2)(-2x)2•9x4
(4a)3•(-3a)34a•7a34y3•6y3
(-x3)(-3x+6)-6a(5a-8b)(4x-6y)(-5x)
71
(—ab3+2ab)•—abx(x+1)+3x(2x-4)-3x(x+4)
67
(9×109)×(-8×106)(-7a4b2)(-8a3)(4x)3(-2x4y3)
-3x3•8x23y4•(-4xy2)(-2x)3•6x4
(-3a)3•(-2a)2-3a2•7a3-9y3•5y4
(-x3)(-8x+9)8a(5a-5b)(9x-4y)(-2x)
51
(—ab2-4ab)•—ab3x(3x+1)-4x(4x+4)-x(x+2)
45
(9×107)×(-8×102)(-5ab4)(-2a4)(-3x)2(-3x2y2)
-2x4•2x6y2•(-7xy)(2x)2•5x4
(2a)2•(-3a)27a•2a9y3•2y2
(-9x3)(3x-4)-7a(9a+6b)(9x+2y)(-7x)
51
(—ab2+3ab)•—ab3x(x+1)-x(3x+3)+x(3x+1)
65
(3×109)×(-9×105)(-ab3)(-7a)(-3x)2(4x3y2)
5x•2x4-7y•(-6xy)(-3x)2•8x4
(3a)2•(-3a)3-7a•8a3y3•7y
(-8x4)(2x+6)-2a(9a+4b)(8x-9y)(-2x)
41
(—ab3+4ab)•—abx(x-1)-2x(x-4)+x(3x-1)
54
(8×102)×(-2×108)(-a3b3)(-8a2)(-3x)2(-2x4y4)
-5x•8x-5y3•(-7x3y3)(2x)3•5x3
(-3a)2•(-2a)3-4a2•9a3-2y•4y3
(-x2)(9x+6)2a(5a-3b)(6x+3y)(-3x)
21
(—ab2-4ab)•—ab22x(x-3)+4x(x+4)+2x(x-1)
32
(7×105)×(-6×104)(-ab3)(-2a3)(4x)2(-3x4y4)
-9x4•7x3-7y2•(-2xy4)(-2x)2•4x2
(2a)3•(4a)3-7a•4a2-8y3•2y
(-x4)(-5x+4)-7a(6a+5b)(3x-4y)(-8x)
51
(—ab3-2ab)•—ab23x(x-1)-3x(x+1)+4x(x+3)
45
(8×109)×(-2×106)(-ab2)(-2a)(2x)3(2x3y3)
-7x•4x6y3•(-4x4y2)(-3x)3•2x3
(3a)3•(2a)26a2•5a36y•7y3
(-x2)(-4x-8)-2a(2a+6b)(9x+7y)(-5x)
71
(—ab2+6ab)•—ab32x(x+4)+3x(4x+1)+x(x-2)
67
(4×102)×(-3×108)(-2ab)(-8a)(-4x)3(4x2y3)
2x3•6x3-5y4•(-4x3y4)(-2x)3•2x2
(-4a)2•(-3a)3-6a3•5a8y•9y
(-8x3)(5x-2)-8a(8a+7b)(8x-2y)(-6x)
21
(—ab3+6ab)•—ab3x(2x+2)-3x(4x+1)+4x(3x+4)
32
(6×104)×(-5×103)(-3a3b4)(-8a)(3x)3(-3x4y3)
4x3•3x-9y•(-5xy2)(2x)2•6x3
(2a)2•(-2a)2-7a•4a-7y3•3y2
(-x4)(-5x-8)-9a(4a-6b)(7x+7y)(-2x)
51
(—ab2-6ab)•—abx(3x+3)-4x(2x-2)-3x(x-2)
45
(8×108)×(-3×104)(-6ab)(-8a)(3x)2(-4x2y5)
5x4•3x-2y2•(-3xy)(-4x)2•5x2
(-3a)2•(-3a)38a4•4a-4y•4y
(-8x3)(3x+4)-3a(9a+7b)(4x-5y)(-3x)
41
(—ab2-4ab)•—ab22x(2x-4)-x(4x-3)-2x(x+3)
34
(8×104)×(-3×107)(-ab4)(-7a4)(3x)3(-3x2y3)
-5x3•2x34y2•(-7xy)(-2x)3•9x3
(-2a)2•(-2a)34a4•8a-5y4•5y
(-x4)(-4x-3)-9a(4a+3b)(2x-4y)(-7x)
41
(—ab3+3ab)•—ab23x(x+3)-x(x+1)+2x(4x+2)
34
(7×107)×(-7×109)(-a4b)(-9a3)(-3x)2(3x4y3)
-8x•8x39y•(-7x4y2)(-3x)2•7x2
(4a)3•(3a)2-6a•2a-9y2•8y
(-2x4)(-5x-9)9a(8a+3b)(7x+9y)(-8x)
21
(—ab2-4ab)•—abx(4x+1)+2x(4x+1)+x(x+3)
32
(5×105)×(-4×107)(-a4b2)(-7a3)(-3x)2(-4x3y5)
-9x3•2x-8y•(-8xy2)(-2x)3•4x4
(4a)2•(3a)27a•9a-6y•5y3
(-x2)(8x-4)-8a(5a+5b)(9x+6y)(-8x)
51
(—ab3-2ab)•—abx(x-2)-4x(3x+2)-2x(x+4)
65
(4×109)×(-6×106)(-8a3b3)(-5a)(-4x)2(-2x2y2)
-3x2•9x3y•(-6xy)(4x)3•4x3
(-4a)3•(3a)23a2•5a4-2y4•4y3
(-x4)(9x-2)-9a(3a-8b)(7x+9y)(-8x)
51
(—ab3-2ab)•—ab32x(2x+1)-3x(4x-3)-3x(x+3)
65
(3×107)×(-4×106)(-3a4b)(-6a)(-4x)2(-3x2y5)
2x4•2x-2y•(-3xy3)(-3x)2•8x3
(-2a)3•(-2a)34a•8a-9y4•3y3
(-x4)(-4x+4)-6a(8a+4b)(9x+9y)(-9x)
51
(—ab3+5ab)•—ab23x(x-3)-4x(x-4)+x(4x-3)
65
(3×104)×(-6×108)(-a3b3)(-5a3)(-4x)3(-4x2y4)
-5x•6x-2y•(-2x3y2)(-4x)2•6x3
(3a)2•(-4a)2-5a4•5a45y•5y2
(-x3)(5x-5)-9a(8a-7b)(4x+7y)(-5x)
51
(—ab2+5ab)•—abx(x+1)-x(3x+1)-3x(x-2)
45
(6×107)×(-9×109)(-a2b)(-7a4)(-2x)3(-2x3y2)
8x•2x2-2y4•(-8x4y)(2x)3•6x4
(2a)2•(4a)2-7a2•6a8y4•5y2
(-x2)(4x+3)9a(9a+4b)(3x+6y)(-3x)
51
(—ab2-5ab)•—abx(x+2)+x(4x-2)-x(x-2)
45
(4×102)×(-4×102)(-8ab)(-5a)(2x)2(-4x3y2)
3x•6x-6y•(-5x4y)(-3x)3•4x3
(3a)3•(4a)3-4a•2a3y2•9y
(-6x2)(5x-2)-7a(2a+4b)(3x+3y)(-9x)
21
(—ab2-4ab)•—abx(3x+3)+4x(x-2)+2x(x+3)
32
(7×102)×(-4×109)(-a2b)(-5a2)(2x)2(2x4y3)
-7x3•7x-7y2•(-7xy4)(2x)2•4x3
(-3a)3•(2a)3-6a•9a25y2•7y3
(-9x3)(4x+7)6a(7a+8b)(9x+7y)(-5x)
51
(—ab2-2ab)•—ab23x(x-1)+4x(x-3)+x(x-3)
65
(5×105)×(-2×103)(-3a2b2)(-4a)(4x)3(3x4y3)
-2x•4x7y•(-8x3y)(-4x)2•8x4
(4a)3•(-4a)38a2•2a-4y•2y
(-3x3)(9x+3)-2a(4a-2b)(5x-7y)(-9x)
41
(—ab3+5ab)•—ab33x(x-4)+x(2x-1)-4x(x+3)
34
(2×105)×(-7×107)(-ab2)(-4a)(3x)2(3x3y2)
7x•8x3-2y•(-3xy)(2x)3•7x3
(4a)3•(-3a)3-3a2•7a3y•6y2
(-9x4)(-4x+9)3a(8a+3b)(6x-7y)(-4x)
31
(—ab3-4ab)•—ab4x(x-3)-x(2x+3)+x(x+4)
43
(3×103)×(-9×106)(-6a4b)(-6a2)(2x)3(2x3y4)
5x•3x-2y3•(-6x2y4)(-4x)3•8x2
(-3a)3•(-2a)29a•7a9y4•3y3
(-8x3)(-9x-5)6a(4a+7b)(4x+5y)(-5x)
61
(—ab2+2ab)•—ab3x(3x-2)+3x(x-1)-3x(3x+4)
56
(9×109)×(-8×105)(-ab)(-7a)(-2x)3(4x4y3)
6x•6x42y2•(-9x4y4)(4x)2•5x2
(2a)3•(-4a)34a2•7a-2y•6y2
(-2x2)(-4x-2)-5a(3a-8b)(7x-5y)(-7x)
51
(—ab2+2ab)•—ab33x(x-4)+x(x-1)-x(x+4)
65
(7×103)×(-5×102)(-5a2b4)(-9a3)(2x)3(-3x2y3)
-3x3•5x25y•(-4xy)(4x)3•6x4
(4a)3•(-3a)3-2a2•4a-5y•7y
(-x2)(-8x+4)-3a(4a-2b)(5x+2y)(-7x)
41
(—ab2-5ab)•—ab24x(3x-3)-x(x-1)-x(x+3)
34
(7×105)×(-7×109)(-2ab)(-5a2)(-2x)3(-4x2y5)
8x3•9x39y•(-9xy3)(-3x)2•5x2
(-4a)3•(-4a)27a3•4a-7y2•6y3
(-x4)(4x+3)-9a(8a+2b)(5x-4y)(-5x)
61
(—ab2-6ab)•—abx(x-2)+x(x-4)+x(x+2)
56
(7×102)×(-6×108)(-a2b4)(-2a4)(2x)2(2x2y5)
-6x•8x32y2•(-9xy)(-3x)3•5x4
(4a)3•(-2a)25a4•7a46y3•5y
(-x4)(-7x-4)5a(5a-2b)(2x+8y)(-3x)
51
(—ab3+5ab)•—ab
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