人教版初二数学上册单项式乘多项式练习题精选43.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43.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43
(-x4)(-9x-4)7a(5a-2b)(5x+2y)(-4x)
51
(—ab2-5ab)•—ab34x(4x+2)-x(x-2)-x(2x+2)
65
(4×107)×(-7×109)(-7a2b)(-8a)(-2x)2(4x3y5)
3x•8x25y4•(-9x4y2)(4x)2•6x4
(2a)3•(2a)37a•5a3y4•8y
(-x2)(-2x+7)-4a(8a+7b)(3x+3y)(-5x)
41
(—ab3-2ab)•—ab3x(x+1)-2x(x+3)+3x(x+3)
34
(5×107)×(-5×105)(-a3b2)(-9a3)(-3x)3(-4x4y3)
5x•3x44y•(-6x3y4)(2x)3•7x4
(3a)3•(-3a)28a•2a4y•3y
(-x4)(5x+4)4a(6a+3b)(4x+9y)(-4x)
51
(—ab3-6ab)•—abx(x+2)-x(2x+2)-x(x+3)
65
(8×105)×(-9×109)(-a4b4)(-2a4)(-3x)2(-4x2y4)
-9x•9x3y2•(-5x3y2)(4x)3•9x3
(3a)2•(-4a)23a2•8a3-8y•9y2
(-8x4)(6x-3)-9a(8a+6b)(7x-5y)(-8x)
71
(—ab3+4ab)•—ab22x(2x+2)+x(2x-2)+x(2x+3)
67
(2×108)×(-9×106)(-ab3)(-9a)(4x)2(3x3y3)
6x•3x-8y4•(-4xy4)(2x)3•3x3
(-4a)2•(3a)29a3•5a-8y4•6y2
(-x2)(2x+1)3a(3a+4b)(3x-7y)(-8x)
31
(—ab3+3ab)•—ab3x(2x+3)-x(4x+4)+2x(x-1)
43
(9×106)×(-5×103)(-ab)(-2a3)(2x)3(2x2y5)
7x4•9x4y3•(-5xy4)(-4x)3•2x2
(2a)3•(3a)2-9a4•6a23y4•9y
(-6x2)(4x-9)6a(7a-8b)(6x-6y)(-7x)
71
(—ab3-4ab)•—abx(x+2)+2x(x+2)+x(4x-2)
67
(5×104)×(-4×104)(-2a3b)(-8a4)(3x)2(2x3y4)
-9x•3x3-9y3•(-7x3y4)(3x)3•6x3
(4a)3•(-4a)3-6a•5a-6y•9y3
(-x3)(-7x-3)4a(9a-3b)(2x-8y)(-7x)
51
(—ab2+6ab)•—ab2x(3x+3)-2x(2x+3)+x(2x+2)
65
(7×102)×(-2×109)(-7ab)(-8a)(4x)2(3x3y4)
9x•5x2-3y3•(-8xy)(-3x)3•7x4
(2a)2•(-2a)26a2•4a2-3y4•4y
(-2x4)(-2x+4)-8a(2a-7b)(3x+3y)(-9x)
51
(—ab2-6ab)•—abx(3x-3)+x(x+3)+x(x+3)
45
(2×104)×(-4×105)(-a2b3)(-3a)(-2x)3(-4x4y5)
-2x•4x-2y4•(-8xy4)(4x)2•5x3
(3a)3•(2a)3-5a•9a47y2•3y
(-x4)(-6x+2)7a(3a-7b)(9x-5y)(-4x)
21
(—ab2+6ab)•—ab3x(4x+3)+3x(3x+3)+4x(x+2)
32
(3×106)×(-2×104)(-6a4b4)(-2a)(-4x)2(-4x3y3)
2x4•3x3y2•(-7xy3)(-4x)2•7x4
(-4a)3•(4a)2-7a2•6a9y•3y
(-x4)(-3x+8)-9a(5a+4b)(5x+6y)(-4x)
31
(—ab3+3ab)•—ab3x(4x+4)+x(x+4)-x(3x+1)
43
(2×103)×(-9×107)(-9ab2)(-3a)(-3x)2(-4x3y5)
4x•5x36y•(-2x4y4)(-3x)2•6x3
(4a)2•(2a)2-4a•4a35y•7y
(-3x4)(-8x-8)-6a(7a+6b)(4x-4y)(-5x)
61
(—ab2+2ab)•—abx(4x-3)+x(3x-3)+x(x+1)
56
(2×104)×(-7×108)(-7a2b)(-9a)(4x)3(-2x3y5)
-4x•4x-9y4•(-2xy)(-3x)2•9x2
(3a)2•(2a)2-7a3•9a-7y•5y3
(-x2)(-8x-9)-2a(7a-6b)(2x-6y)(-4x)
51
(—ab3-4ab)•—ab32x(2x-1)-3x(2x+1)-x(2x+4)
45
(8×105)×(-4×109)(-3ab3)(-6a)(4x)2(-3x4y3)
8x•5x-7y2•(-6x3y3)(2x)3•2x3
(3a)2•(-4a)3-4a•9a2-6y•9y
(-x3)(6x-4)5a(6a+3b)(4x-2y)(-4x)
51
(—ab3+5ab)•—abx(x-1)+x(3x-2)-x(2x+1)
45
(9×105)×(-6×102)(-a2b)(-4a)(3x)3(4x4y2)
-2x2•6x4-7y•(-8xy)(-3x)2•8x4
(4a)3•(-2a)28a3•9a-6y•3y
(-x4)(7x+2)4a(2a-8b)(8x-3y)(-7x)
31
(—ab3-5ab)•—ab2x(x-2)+2x(2x-4)-4x(3x-3)
43
(2×108)×(-7×107)(-ab)(-9a)(2x)3(-2x3y5)
-6x3•6x7y4•(-2x4y3)(-3x)3•6x4
(2a)3•(2a)37a•6a27y•8y
(-5x3)(-8x+2)-6a(9a+3b)(5x-4y)(-4x)
71
(—ab2+4ab)•—abx(2x+1)+2x(4x+1)+4x(3x-1)
67
(3×102)×(-6×104)(-4ab3)(-8a)(-4x)2(4x4y5)
7x2•3x-8y•(-7x3y4)(4x)2•4x4
(-4a)2•(3a)22a•3a4-9y•5y
(-x2)(4x-7)7a(3a-7b)(8x+6y)(-8x)
31
(—ab3-5ab)•—ab32x(2x+4)-x(2x-3)+4x(x+1)
43
(6×108)×(-6×106)(-7a4b2)(-5a2)(3x)3(-3x2y3)
6x•7x49y3•(-7xy)(-2x)3•2x2
(3a)2•(-3a)27a•3a47y4•6y
(-9x3)(-6x+3)-7a(7a+7b)(4x+5y)(-2x)
51
(—ab3+2ab)•—abx(4x+1)-4x(3x+1)+x(x+1)
45
(9×107)×(-3×106)(-ab2)(-3a2)(-4x)2(2x4y4)
-6x3•7x4y•(-4x4y4)(3x)2•2x3
(-3a)2•(-4a)2-2a4•6a37y3•3y
(-8x3)(5x+8)5a(4a+3b)(4x-3y)(-4x)
41
(—ab2+2ab)•—ab24x(3x-3)-3x(3x+2)+x(x-3)
34
(7×108)×(-6×107)(-4ab)(-8a3)(3x)3(4x2y4)
4x•6x22y4•(-8x4y4)(-4x)2•7x4
(2a)3•(-3a)2-3a•5a45y4•7y4
(-4x4)(5x-5)-3a(8a+9b)(5x-5y)(-8x)
21
(—ab3-2ab)•—abx(3x-4)-4x(2x-3)-4x(3x+4)
32
(2×104)×(-2×104)(-a3b)(-3a3)(-3x)2(-4x2y5)
-4x2•2x3-3y•(-8xy)(-2x)3•9x4
(-2a)3•(-4a)39a3•4a9y•3y
(-8x4)(4x+4)-4a(5a+8b)(8x-5y)(-6x)
41
(—ab2+2ab)•—abx(x-1)-3x(x-1)-x(x-1)
54
(3×108)×(-6×107)(-a4b2)(-2a)(2x)2(4x4y4)
9x2•2x3-4y•(-5x3y3)(-3x)3•8x4
(2a)2•(2a)2-3a•8a-7y•2y2
(-7x3)(4x-2)-7a(8a-4b)(7x+8y)(-8x)
51
(—ab3+4ab)•—abx(2x+1)+x(x+3)-4x(x+3)
65
(3×105)×(-9×107)(-7ab2)(-4a3)(-3x)2(-2x2y4)
-8x•3x-8y•(-5x4y4)(-4x)2•5x2
(-2a)3•(-4a)38a•8a4-7y4•8y3
(-x2)(9x+9)-8a(2a-5b)(4x+6y)(-6x)
41
(—ab2+6ab)•—ab34x(x-2)+x(3x+1)-x(2x+2)
54
(8×107)×(-6×107)(-a4b3)(-6a4)(3x)3(-2x3y4)
-4x•2x32y2•(-7x4y4)(-3x)3•3x3
(3a)3•(-3a)3-6a2•2a-3y4•8y3
(-x2)(-3x+2)9a(4a-8b)(2x-2y)(-4x)
31
(—ab2+2ab)•—ab2x(x-1)-2x(4x-1)-3x(x+3)
43
(8×109)×(-3×104)(-ab)(-4a2)(-3x)2(2x4y4)
-9x•3x26y•(-8x3y)(-3x)3•2x2
(-3a)3•(-4a)2-7a•5a-4y4•9y4
(-x3)(4x-6)9a(9a+2b)(6x+2y)(-8x)
51
(—ab3+4ab)•—ab3x(2x+3)-2x(x-3)-x(x+3)
65
(3×104)×(-6×104)(-9a2b)(-2a4)(3x)3(-3x3y4)
5x•8x6y•(-2x3y)(-2x)3•7x4
(-4a)2•(-3a)3-6a•2a44y4•6y3
(-x3)(4x+2)-2a(4a+4b)(9x+2y)(-5x)
21
(—ab2-2ab)•—ab32x(x-4)+x(x+3)+x(3x+4)
32
(7×105)×(-4×104)(-4ab)(-6a4)(2x)2(-3x2y4)
-5x•3x35y2•(-9xy)(-2x)3•4x3
(-4a)2•(-2a)25a•7a8y•9y
(-9x4)(5x+8)4a(7a-7b)(7x-9y)(-3x)
41
(—ab2+5ab)•—ab3x(x+3)-3x(3x+4)-x(x-1)
54
(3×103)×(-9×102)(-ab3)(-4a)(3x)2(2x4y4)
3x•3x-6y2•(-7x3y)(-4x)2•9x4
(2a)2•(-3a)2-8a2•9a4-9y2•6y
(-x4)(6x-9)-8a(5a-4b)(9x+4y)(-4x)
21
(—ab2+2ab)•—ab34x(4x+4)+2x(4x+4)+x(x+1)
32
(2×106)×(-6×102)(-ab2)(-2a)(-4x)2(-3x2y4)
3x•5x36y3•(-2xy3)(2x)2•5x4
(3a)3•(-2a)2-4a3•8a-3y3•5y
(-x2)(4x-6)3a(4a-4b)(4x-5y)(-5x)
71
(—ab3-4ab)•—ab3x(x-1)+4x(4x-4)+4x(2x-1)
67
(7×106)×(-9×105)(-4a2b4)(-8a)(-4x)2(-4x2y4)
7x•7x-6y•(-9x2y)(4x)3•3x3
(2a)2•(-3a)32a•9a4-6y2•2y3
(-9x4)(2x+5)7a(5a-2b)(5x+4y)(-7x)
41
(—ab3+5ab)•—abx(x-1)-x(2x+3)-x(3
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