人教版初二数学上册单项式乘多项式练习题精选36.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36.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36
(-4x2)(2x+3)-8a(9a-3b)(8x-3y)(-4x)
31
(—ab3-5ab)•—ab2x(x-3)-3x(4x+3)+x(3x+2)
43
(6×106)×(-8×103)(-a2b)(-6a)(-2x)2(-4x3y5)
-6x2•9x-6y3•(-6x2y)(3x)2•5x3
(-3a)2•(4a)25a3•2a34y4•3y
(-9x3)(-4x-3)-6a(2a-9b)(8x+8y)(-4x)
51
(—ab3+6ab)•—abx(x+2)-x(4x+2)-x(x-4)
45
(4×108)×(-2×103)(-8ab2)(-5a4)(3x)2(2x4y4)
5x4•9x4y•(-3xy4)(4x)3•3x3
(3a)3•(4a)3-9a•6a-5y•3y4
(-3x3)(2x+7)-5a(2a-5b)(7x-8y)(-2x)
71
(—ab3-5ab)•—ab3x(4x+1)+2x(x+4)+x(x+3)
67
(6×104)×(-8×105)(-a3b4)(-7a)(-2x)2(-3x3y5)
-3x2•6x22y2•(-8x3y)(-2x)2•2x2
(2a)3•(-2a)2-5a•4a5y4•4y2
(-x3)(-4x+9)-4a(5a+4b)(2x-7y)(-5x)
71
(—ab3-6ab)•—abx(x+4)-4x(x-2)+x(x+3)
67
(8×104)×(-6×106)(-a3b)(-4a2)(-4x)3(-3x3y4)
8x4•8x-3y2•(-7x3y)(-3x)2•8x4
(-2a)2•(-3a)3-6a•3a5y2•2y
(-x4)(4x-4)-6a(3a-8b)(2x+6y)(-5x)
31
(—ab2+3ab)•—ab22x(x-3)-2x(x+3)-x(x-2)
43
(4×104)×(-6×107)(-a4b3)(-7a4)(-3x)3(-4x3y4)
-5x2•6x-5y4•(-9xy2)(-2x)3•2x2
(-3a)3•(3a)29a•8a-8y•4y3
(-3x4)(-5x-6)-5a(2a-6b)(2x-6y)(-3x)
51
(—ab3+6ab)•—ab33x(x-4)+2x(x+3)-x(x+1)
65
(5×106)×(-9×103)(-a3b4)(-3a3)(3x)2(4x2y3)
5x•5x-5y•(-4xy)(-4x)2•9x4
(2a)3•(4a)2-3a3•8a-4y•8y2
(-9x3)(-9x+8)9a(9a+8b)(8x-5y)(-6x)
61
(—ab2-3ab)•—ab3x(x+1)+x(4x+2)+4x(x-4)
56
(8×106)×(-4×106)(-8ab4)(-2a)(-3x)2(-2x2y5)
7x4•7x39y•(-5xy)(4x)2•5x2
(3a)2•(2a)3-2a•2a-6y•5y3
(-9x3)(-9x+3)5a(7a-3b)(4x-9y)(-9x)
51
(—ab3+4ab)•—ab32x(4x+2)+4x(x+2)-x(3x-4)
45
(5×109)×(-9×102)(-ab)(-8a3)(-3x)2(2x2y2)
9x•2x29y•(-8xy)(4x)2•6x2
(-4a)2•(-3a)2-5a2•2a6y•7y
(-x4)(7x+6)-7a(6a+6b)(9x+5y)(-4x)
71
(—ab2+2ab)•—ab32x(2x-4)+x(x+3)+2x(x+4)
67
(4×106)×(-7×102)(-ab)(-6a)(3x)3(2x2y3)
5x3•8x3-9y4•(-8xy)(-3x)3•5x4
(3a)2•(-2a)2-6a4•6a2y3•2y
(-x3)(-6x+9)-2a(7a-9b)(3x+6y)(-2x)
61
(—ab3-3ab)•—ab2x(x+4)+4x(4x+1)+x(x+1)
56
(9×108)×(-3×108)(-6a4b)(-3a)(-4x)2(3x4y2)
-5x4•7x24y4•(-8xy)(-2x)2•7x4
(3a)2•(-4a)3-3a•6a2-7y•8y4
(-5x4)(5x-1)-6a(6a-7b)(3x+4y)(-3x)
71
(—ab3-3ab)•—ab2x(x-1)+2x(x-2)-2x(2x-4)
67
(2×109)×(-8×109)(-a3b)(-5a3)(-3x)2(-4x4y4)
-9x4•7x28y3•(-7xy2)(-4x)2•5x4
(3a)3•(-4a)23a4•4a-5y4•4y4
(-3x4)(-2x-9)3a(2a+7b)(9x-7y)(-4x)
71
(—ab2-3ab)•—ab23x(x+1)+3x(x+3)-x(3x-4)
67
(4×103)×(-6×106)(-ab2)(-2a)(4x)2(-2x4y3)
7x3•8x49y4•(-9x4y2)(3x)2•9x4
(3a)3•(4a)26a4•6a2-7y4•7y3
(-x3)(-3x-3)6a(5a-5b)(9x+2y)(-2x)
71
(—ab3-2ab)•—ab34x(3x-2)-x(4x+3)-2x(3x-2)
67
(9×103)×(-3×108)(-5a4b)(-6a)(4x)3(3x2y2)
4x•5x3-2y4•(-8x3y)(4x)3•8x4
(3a)2•(-4a)3-6a•9a-2y•5y
(-x3)(3x-3)6a(9a-9b)(5x-6y)(-5x)
31
(—ab2+6ab)•—ab3x(x-1)-x(x+3)+4x(x+4)
43
(5×104)×(-9×104)(-ab4)(-4a2)(2x)3(-2x4y3)
-5x2•5x2-2y4•(-7xy)(-2x)2•4x4
(-3a)2•(-3a)23a•9a2-6y•8y
(-2x4)(-2x+2)-5a(3a-4b)(7x+7y)(-6x)
21
(—ab3+6ab)•—ab3x(4x-4)-x(x-2)+x(x+4)
32
(5×102)×(-4×105)(-8ab4)(-5a)(-2x)2(-2x3y2)
9x•6x-6y•(-5x3y)(2x)2•7x2
(-2a)3•(2a)37a3•3a42y3•5y2
(-8x3)(7x+5)-3a(7a-4b)(9x-9y)(-4x)
21
(—ab2+5ab)•—abx(3x-4)-4x(x-3)+x(x-3)
32
(7×103)×(-7×108)(-a3b4)(-5a4)(4x)3(3x4y2)
-2x•4x5y3•(-3x3y)(-3x)2•9x3
(4a)3•(4a)39a•8a3-5y•9y
(-x2)(2x+2)7a(3a+7b)(6x-5y)(-2x)
21
(—ab2-3ab)•—ab23x(4x-1)+x(x+3)+x(4x-3)
32
(9×106)×(-9×104)(-4ab)(-2a)(4x)3(-2x2y4)
9x4•2x6y•(-4xy)(2x)2•3x2
(-3a)2•(4a)22a•5a-4y2•7y
(-2x3)(-8x-7)2a(5a+5b)(3x-3y)(-8x)
21
(—ab2-6ab)•—ab2x(4x+3)-4x(2x-1)-x(x+4)
32
(9×105)×(-8×102)(-a2b3)(-3a)(4x)3(3x3y4)
4x•6x5y4•(-9x4y2)(-2x)3•4x2
(-3a)3•(2a)36a•3a-9y2•6y3
(-4x4)(-6x+4)4a(2a-3b)(7x-4y)(-9x)
31
(—ab2-3ab)•—ab3x(2x+4)-3x(x-3)+x(x-2)
43
(9×105)×(-7×104)(-ab3)(-2a)(-4x)3(2x3y3)
-2x•3x5y2•(-9xy2)(-3x)3•6x3
(2a)3•(-2a)2-4a3•4a-6y•5y
(-9x3)(-7x+6)-9a(4a-4b)(9x-5y)(-9x)
21
(—ab3-2ab)•—ab34x(2x+3)-4x(3x-4)-x(x-2)
32
(2×107)×(-7×106)(-9a2b4)(-5a)(-3x)2(-3x3y3)
5x•2x42y2•(-3xy)(2x)2•8x3
(-2a)3•(3a)3-9a•6a-9y3•3y
(-x4)(3x-2)2a(5a+4b)(6x+2y)(-5x)
31
(—ab2+5ab)•—ab3x(x+4)+3x(x-1)+x(x-2)
43
(7×103)×(-3×109)(-ab)(-9a)(-4x)3(-4x3y5)
5x•9x8y•(-2xy)(-3x)2•9x3
(-2a)2•(2a)2-9a•8a6y•8y
(-7x2)(7x+6)7a(8a-6b)(9x+5y)(-2x)
61
(—ab2-3ab)•—ab3x(4x-4)+4x(4x+2)+x(x+3)
56
(2×107)×(-7×103)(-3ab)(-4a)(-3x)3(-3x3y3)
-4x2•6x3-8y3•(-5x4y)(2x)3•8x4
(3a)2•(-2a)39a•9a3y3•2y
(-2x3)(3x+3)-6a(5a+3b)(6x-5y)(-8x)
51
(—ab2-4ab)•—ab34x(3x+4)+x(x+2)-x(x+3)
65
(7×106)×(-9×106)(-ab2)(-4a3)(-4x)3(-2x2y2)
-2x•3x4-7y•(-5x4y)(3x)2•2x3
(-3a)2•(-4a)3-9a3•6a4y4•9y3
(-x2)(-2x+9)-7a(4a+9b)(2x-3y)(-3x)
51
(—ab2+4ab)•—abx(3x+4)-2x(3x+1)-4x(x-4)
65
(6×102)×(-7×102)(-7ab2)(-2a)(3x)3(-4x4y4)
9x2•8x-8y3•(-8x2y)(4x)3•6x3
(-3a)2•(4a)3-7a2•2a2-2y4•5y
(-x3)(6x+2)8a(9a+5b)(6x+3y)(-4x)
41
(—ab3-5ab)•—ab32x(3x-1)+3x(4x+2)-2x(x-2)
34
(8×102)×(-9×103)(-ab3)(-5a)(-4x)3(2x3y3)
-8x•3x25y4•(-8xy2)(2x)3•5x3
(-4a)2•(-3a)2-5a4•2a2y3•3y4
(-x2)(-5x+4)-7a(3a+5b)(2x-7y)(-4x)
31
(—ab2-3ab)•—ab4x(2x-3)-4x(4x+3)+x(3x-4)
43
(5×103)×(-7×102)(-8ab)(-5a)(3x)3(-2x4y2)
-4x2•5x4y4•(-3xy)(-4x)2•2x3
(3a)2•(2a)34a•8a-5y3•8y3
(-5x3)(-2x-7)-2a(6a+3b)(2x+5y)(-9x)
41
(—ab3+3ab)•—abx(x+2)+x(x+4)+x(2x-3)
34
(8×102)×(-8×108)(-6ab)(-2a)(-3x)2(4x4y5)
-4x•9x2-9y2•(-4x2y)(3x)2•6x3
(3a)2•(3a)39a4•8a3-7y4•3y
(-x4)(-3x+9)-8a(3a-3b)(8x+3y)(-6x)
21
(—ab3-4ab)•—ab3x(x-3)-x(x+3)-2x(x-4)
32
(9×106)×(-9×108)(-5ab4)(-6a2)(4x)2(-3x2y5)
4x3•7x4-4y•(-6xy)(2x)2•2x3
(4a)3•(-4a)38a•8a29y2•6y
(-3x2)(-5x-1)3a(6a-3b)(4x-3y)(-9x)
51
(—ab3-3ab)•—ab4x(3x-2)+4x(x-3)+x(x+4)
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