人教版初二数学上册单项式乘多项式练习题精选28.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28.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28
(-x4)(2x+3)-7a(6a-6b)(6x+6y)(-3x)
51
(—ab3-2ab)•—abx(3x-1)-2x(3x+4)-2x(x+1)
45
(5×104)×(-2×105)(-3ab4)(-4a3)(3x)2(2x3y3)
-3x4•5x3-3y•(-3xy)(4x)2•6x2
(-4a)3•(2a)35a2•7a44y3•2y2
(-x4)(-5x+4)8a(3a+9b)(4x+3y)(-9x)
51
(—ab3+6ab)•—ab3x(x-3)-x(x-2)+x(4x-1)
45
(2×105)×(-2×103)(-a3b3)(-9a)(3x)3(4x4y5)
-2x•6x9y2•(-8xy)(-2x)2•7x4
(2a)3•(4a)2-9a•8a3-4y•9y
(-6x4)(8x-8)-8a(8a+4b)(9x-7y)(-2x)
51
(—ab3-2ab)•—ab2x(4x-1)-x(3x+4)-x(x-2)
45
(9×103)×(-5×102)(-7ab)(-7a)(4x)2(-2x2y2)
-9x•7x48y4•(-5xy)(-2x)3•5x4
(-2a)2•(4a)2-8a•7a27y•4y2
(-x4)(-7x-2)3a(5a+4b)(4x-3y)(-4x)
61
(—ab3-6ab)•—ab33x(x-2)+4x(4x-3)+4x(x+3)
56
(4×104)×(-2×103)(-ab2)(-2a)(-2x)3(2x3y2)
6x•4x36y•(-7xy2)(-3x)3•4x3
(-3a)3•(2a)2-2a3•5a-2y3•8y
(-6x4)(-9x-3)4a(4a-9b)(3x-4y)(-8x)
51
(—ab3+2ab)•—abx(x-4)-3x(2x+4)+3x(x-1)
45
(6×102)×(-5×104)(-a2b)(-7a)(2x)2(3x4y5)
-4x2•2x-3y4•(-8xy)(4x)3•3x2
(2a)2•(-2a)24a•4a3y•5y2
(-x2)(-6x-9)3a(7a+6b)(7x+6y)(-4x)
41
(—ab2+6ab)•—ab2x(x-4)-2x(2x-3)+x(x+2)
54
(6×108)×(-3×103)(-ab2)(-3a4)(2x)2(-2x4y5)
2x3•8x5y•(-3x2y)(2x)2•9x4
(-4a)2•(-2a)3-7a•7a3-9y4•2y
(-x3)(-6x+2)-2a(2a+8b)(4x+8y)(-6x)
51
(—ab3+4ab)•—abx(x+2)-x(2x+1)-4x(4x+4)
45
(6×109)×(-7×108)(-ab)(-6a4)(-4x)2(4x3y3)
3x4•7x48y3•(-7x4y3)(2x)3•8x2
(-4a)2•(2a)39a3•7a4-7y•9y4
(-5x4)(-2x-2)7a(2a+3b)(7x+5y)(-3x)
31
(—ab3-6ab)•—abx(2x+3)-x(4x-2)-x(x-4)
43
(8×105)×(-7×106)(-a3b3)(-9a)(2x)3(4x2y5)
9x•8x43y3•(-9xy)(3x)3•5x4
(3a)2•(3a)3-4a•9a4y4•9y
(-x4)(4x-3)8a(2a-2b)(9x-2y)(-6x)
51
(—ab2+4ab)•—ab2x(4x+3)+2x(3x+3)+x(x-4)
65
(3×102)×(-9×104)(-a3b2)(-9a3)(3x)2(-2x4y5)
6x•6x38y•(-9xy4)(-3x)3•4x3
(-2a)3•(-3a)25a2•4a3y•2y
(-7x4)(6x+6)2a(8a-9b)(3x-9y)(-5x)
41
(—ab3+2ab)•—ab2x(3x-3)+4x(3x-3)+x(3x-3)
34
(7×102)×(-9×105)(-8a3b3)(-5a)(-4x)3(3x4y3)
-4x4•3x43y•(-6xy)(2x)3•2x2
(-4a)2•(2a)3-9a•3a35y•6y
(-8x4)(9x+1)-9a(2a+7b)(3x+4y)(-6x)
71
(—ab2-5ab)•—ab4x(x-4)-x(x-4)-x(x+2)
67
(6×109)×(-2×106)(-a2b2)(-2a3)(-2x)2(4x3y5)
6x•5x5y2•(-7x4y)(-2x)3•7x4
(-3a)2•(-4a)26a2•9a-5y2•6y
(-3x2)(4x+9)2a(8a-2b)(2x+7y)(-5x)
21
(—ab2+4ab)•—abx(x-2)-4x(x-2)-3x(3x+4)
32
(6×108)×(-3×109)(-a3b4)(-7a2)(-2x)2(-4x2y4)
4x3•5x3-6y4•(-8x3y)(-2x)3•9x2
(4a)2•(4a)38a4•6a34y4•4y2
(-2x3)(-8x-9)-2a(9a-6b)(5x+7y)(-3x)
71
(—ab3-5ab)•—ab32x(x-1)-2x(x-3)-4x(x-3)
67
(6×107)×(-8×105)(-8a2b2)(-2a)(3x)3(3x3y5)
2x•3x45y4•(-9xy2)(4x)3•8x3
(2a)2•(-2a)38a2•7a-2y•3y
(-x2)(8x-9)5a(3a-3b)(8x+9y)(-5x)
41
(—ab2-4ab)•—ab3x(x+1)-4x(2x-3)+x(3x+2)
54
(3×109)×(-8×103)(-a4b)(-3a2)(-4x)3(4x3y5)
-5x•2x2-6y2•(-6x2y)(2x)2•2x2
(-3a)2•(-2a)3-5a•3a3y4•6y
(-x2)(-4x-1)-4a(6a-8b)(8x+9y)(-2x)
71
(—ab2-3ab)•—ab2x(x+4)-4x(x+1)+x(3x-3)
67
(7×107)×(-2×106)(-2a2b)(-5a)(-4x)3(4x4y4)
2x•2x33y2•(-3x3y3)(-2x)2•2x4
(2a)3•(4a)3-9a3•4a3-7y•3y2
(-9x3)(-9x+8)5a(6a-4b)(7x+9y)(-7x)
51
(—ab2+2ab)•—abx(x-3)+4x(x+2)+x(x+4)
65
(2×104)×(-4×108)(-4ab3)(-9a)(-2x)2(4x4y5)
-8x•9x3-6y•(-2x3y)(3x)3•5x3
(-2a)3•(4a)2-2a•7a25y2•7y3
(-x3)(-6x-5)4a(4a-6b)(5x+5y)(-2x)
41
(—ab3-5ab)•—ab4x(x+1)+x(x-4)-x(x-4)
54
(8×107)×(-6×102)(-ab)(-8a)(3x)2(-4x2y5)
-4x•5x-5y2•(-2x4y2)(-2x)2•6x3
(-2a)2•(3a)24a3•5a3-7y4•5y
(-x3)(4x+7)-8a(6a-9b)(4x-2y)(-9x)
41
(—ab2+6ab)•—ab3x(x-4)-4x(x+4)+x(x+1)
34
(3×109)×(-7×108)(-2ab2)(-2a3)(2x)3(3x3y4)
-5x•2x4-7y2•(-2x4y)(3x)3•3x3
(-4a)2•(-2a)3-5a2•9a32y•8y
(-x3)(-8x-5)5a(4a-9b)(8x+8y)(-6x)
51
(—ab3+2ab)•—ab33x(2x+3)+4x(x-3)-2x(x+4)
45
(6×108)×(-8×104)(-a3b)(-7a)(3x)3(-4x3y4)
-4x4•3x4-4y•(-6xy2)(-4x)2•4x3
(-2a)3•(-3a)29a4•2a25y•9y2
(-5x3)(-4x+7)3a(7a+9b)(8x-3y)(-4x)
51
(—ab2+2ab)•—abx(2x+1)-3x(x+1)+2x(x+2)
65
(7×107)×(-4×102)(-ab4)(-6a2)(-3x)3(-4x2y5)
9x4•3x5y4•(-3x2y)(3x)2•8x2
(4a)3•(-2a)33a•8a34y3•8y3
(-x3)(-4x+4)-8a(5a-2b)(7x-8y)(-6x)
41
(—ab2+3ab)•—abx(2x-4)+x(x+4)-3x(x+1)
54
(4×109)×(-8×104)(-ab)(-5a)(-2x)2(-3x4y2)
6x•9x35y•(-2xy4)(2x)3•7x2
(4a)2•(-2a)3-6a•8a2-6y2•7y
(-3x4)(-6x+1)-5a(9a+8b)(9x+8y)(-7x)
71
(—ab3+6ab)•—ab4x(4x+1)-x(x-1)+x(4x+2)
67
(4×103)×(-8×109)(-9ab4)(-4a3)(4x)2(-2x3y2)
5x•6x8y3•(-4x2y)(3x)3•4x3
(2a)3•(-3a)2-6a•5a-7y4•2y2
(-2x3)(4x+1)4a(4a-6b)(4x+8y)(-2x)
71
(—ab2-5ab)•—ab4x(x-2)-x(x-1)+x(x+1)
67
(7×104)×(-5×105)(-ab)(-7a)(4x)2(2x4y5)
9x4•5x28y•(-8x3y2)(-4x)2•7x2
(-3a)2•(-4a)3-6a2•5a24y3•6y
(-x4)(6x-6)6a(8a-8b)(8x-2y)(-8x)
41
(—ab2-3ab)•—ab34x(3x-4)+x(4x-2)-3x(x+3)
54
(7×104)×(-3×102)(-8ab4)(-7a4)(-3x)3(-2x3y4)
-2x3•8x4y4•(-6xy)(4x)2•7x3
(-4a)3•(-2a)33a•7a49y•4y
(-x2)(-2x-2)-3a(9a+8b)(8x-8y)(-4x)
71
(—ab2+2ab)•—ab2x(x+3)+x(3x+2)+x(x-1)
67
(8×109)×(-8×109)(-a2b)(-6a3)(-3x)3(-2x3y4)
-6x•4x-6y4•(-6xy4)(4x)2•2x3
(-3a)2•(4a)3-6a2•8a4y•5y
(-x2)(-2x+1)2a(8a-5b)(3x+8y)(-8x)
71
(—ab2+6ab)•—ab32x(x-4)+x(3x+3)-x(2x-3)
67
(8×102)×(-5×104)(-ab)(-6a2)(2x)3(-3x2y2)
-8x2•4x8y2•(-8x4y2)(-4x)2•4x4
(2a)3•(4a)37a•8a3y•5y2
(-x4)(9x+4)-2a(2a+6b)(3x-6y)(-7x)
61
(—ab3+3ab)•—ab3x(3x+2)+x(x-1)+4x(3x-4)
56
(3×106)×(-3×106)(-a4b4)(-3a3)(-4x)3(-4x3y3)
-3x•2x-5y2•(-9xy4)(3x)3•5x4
(-4a)2•(-2a)3-9a2•3a28y•8y
(-x3)(-6x-9)6a(4a+3b)(6x-2y)(-6x)
41
(—ab2+5ab)•—ab3x(2x-3)-2x(3x+1)+4x(3x-3)
34
(4×103)×(-7×107)(-9ab)(-8a3)(2x)2(2x3y2)
6x•3x9y3•(-7xy)(-2x)3•7x2
(-2a)3•(3a)22a•4a9y3•3y2
(-8x3)(9x-9)9a(2a-8b)(6x-7y)(-6x)
51
(—ab3+6ab)•—abx(x+3)-x(3x-4)+4x(3x-4)
65
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