人教版初二数学上册单项式乘多项式练习题精选15.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15.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15
(-6x4)(5x-6)-7a(7a-7b)(5x+5y)(-7x)
51
(—ab2-4ab)•—ab32x(x+1)-x(x+1)+x(3x+3)
45
(3×106)×(-3×102)(-2a4b)(-9a)(3x)2(-3x2y2)
3x3•3x-8y•(-9x2y3)(2x)3•9x3
(3a)3•(3a)28a3•2a2-8y•7y
(-7x3)(4x-8)4a(6a+6b)(8x-3y)(-8x)
41
(—ab3-5ab)•—ab2x(2x-1)+2x(x+3)+x(2x-1)
54
(3×102)×(-3×102)(-a4b)(-9a2)(-2x)2(-3x3y2)
5x•2x-8y2•(-2x4y)(3x)3•8x4
(-4a)3•(4a)3-9a2•7a4-3y2•3y2
(-x2)(-9x+2)-9a(8a+2b)(8x-7y)(-8x)
61
(—ab2-4ab)•—abx(x-2)-2x(x-2)-x(x+4)
56
(4×109)×(-9×106)(-a3b)(-5a2)(4x)3(-2x2y2)
5x•4x47y•(-6x3y)(2x)3•4x4
(-2a)3•(-2a)34a3•5a6y•4y4
(-x3)(2x+4)-4a(6a+2b)(8x-3y)(-5x)
21
(—ab2-5ab)•—ab4x(2x-4)+x(2x-3)+4x(3x-1)
32
(5×105)×(-5×105)(-a2b2)(-6a3)(-2x)3(-4x4y3)
-3x•3x44y3•(-3xy)(-4x)3•9x3
(-4a)2•(-3a)22a3•5a4-3y•8y
(-4x2)(7x-2)6a(4a+3b)(4x+7y)(-9x)
71
(—ab2-6ab)•—ab3x(2x-2)+x(3x+1)+3x(3x+1)
67
(7×102)×(-2×108)(-5a4b3)(-4a)(3x)2(-4x2y4)
2x•4x4y4•(-7xy3)(-4x)2•3x2
(-2a)3•(2a)27a2•2a-6y2•5y2
(-8x2)(5x-6)3a(5a+3b)(7x-5y)(-5x)
21
(—ab3-5ab)•—ab4x(x+2)-4x(3x+2)-x(x+4)
32
(9×108)×(-6×104)(-a4b3)(-7a)(-4x)2(4x3y3)
-2x3•8x-5y•(-6xy2)(4x)3•6x2
(-3a)3•(3a)3-7a3•9a22y4•9y
(-4x2)(-8x-6)2a(4a+7b)(8x-7y)(-7x)
51
(—ab3-5ab)•—ab24x(4x-1)+x(x-2)-4x(2x+2)
45
(7×105)×(-5×109)(-a2b2)(-2a)(-2x)2(3x4y3)
-8x•2x5y•(-2x2y)(3x)2•7x2
(-3a)2•(-4a)2-9a•6a2-3y3•5y4
(-8x4)(-5x-4)-8a(6a-4b)(7x+3y)(-9x)
41
(—ab3-4ab)•—ab3x(x-2)-3x(x-4)-x(x+2)
34
(3×104)×(-6×106)(-6a4b)(-8a)(-4x)3(2x4y4)
-9x3•3x23y4•(-9xy3)(-4x)3•5x2
(4a)2•(-2a)26a•2a7y•7y3
(-x3)(8x+3)-8a(8a-8b)(9x-6y)(-7x)
21
(—ab2-2ab)•—ab2x(x+2)-x(2x-3)+4x(x-2)
32
(6×109)×(-6×106)(-a2b3)(-2a3)(2x)3(-3x4y2)
3x•4x6y3•(-5xy)(3x)2•4x4
(3a)2•(3a)33a4•3a-3y4•4y4
(-x4)(5x-7)6a(7a-4b)(9x-2y)(-6x)
41
(—ab2+3ab)•—ab3x(4x+4)-2x(x-1)+3x(3x+3)
54
(8×105)×(-7×108)(-ab)(-6a)(-4x)3(4x2y3)
-8x4•7x2-4y•(-7xy2)(-4x)2•8x4
(4a)2•(2a)29a4•4a5y3•6y
(-3x3)(-7x+4)7a(3a-8b)(5x+9y)(-4x)
21
(—ab2+6ab)•—ab2x(3x+2)-x(2x-4)-4x(3x+2)
32
(2×103)×(-7×106)(-5ab3)(-7a)(-2x)2(2x4y4)
7x•4x32y3•(-5xy)(-3x)3•3x4
(-2a)3•(2a)2-4a4•3a34y2•6y3
(-6x2)(-4x+6)4a(3a+9b)(2x-8y)(-5x)
51
(—ab3-5ab)•—ab2x(3x-2)+4x(x+4)-x(x-3)
45
(8×105)×(-4×103)(-ab2)(-7a)(-3x)3(4x2y4)
8x4•5x-8y•(-2x2y)(4x)3•2x2
(2a)3•(3a)2-4a•3a4y4•2y
(-7x4)(-3x-1)8a(2a-4b)(3x+5y)(-7x)
31
(—ab2+2ab)•—ab3x(x-3)+x(2x-4)+2x(x-3)
43
(2×109)×(-7×102)(-6ab2)(-9a4)(-2x)2(-4x4y5)
-7x3•2x-9y•(-6xy3)(-3x)2•9x3
(-4a)2•(3a)36a•3a4y•9y
(-x3)(3x+2)-5a(6a-2b)(6x+6y)(-7x)
71
(—ab2+6ab)•—ab3x(3x-4)-x(4x-4)+3x(x+4)
67
(3×109)×(-8×102)(-ab2)(-6a4)(-4x)2(3x2y4)
6x•8x6y•(-2x4y)(4x)3•6x3
(-2a)3•(-4a)3-2a3•3a7y3•2y2
(-x2)(2x-8)-6a(9a+5b)(5x-3y)(-5x)
31
(—ab2-2ab)•—ab32x(x+2)-3x(x-2)+2x(3x+4)
43
(2×107)×(-7×106)(-8a2b4)(-8a4)(-4x)3(-4x4y3)
-5x4•3x-8y•(-5x2y)(-3x)3•5x4
(4a)2•(-2a)28a4•2a36y2•5y3
(-6x2)(-6x+6)-4a(4a+6b)(7x+4y)(-4x)
51
(—ab2-2ab)•—ab3x(x-3)-3x(x-1)+2x(x+1)
65
(6×105)×(-8×102)(-2a4b)(-3a)(4x)2(-4x2y4)
8x4•9x3-3y2•(-9x2y2)(2x)3•9x2
(4a)2•(4a)22a•6a-4y4•6y3
(-2x4)(-7x+6)-4a(3a-2b)(4x+6y)(-7x)
31
(—ab3-3ab)•—abx(x+4)+2x(3x+2)-x(3x+4)
43
(5×109)×(-9×104)(-a3b3)(-2a3)(4x)2(-2x4y4)
-5x•8x2-9y•(-8x3y)(2x)2•7x3
(-3a)3•(4a)37a2•5a-4y4•5y3
(-7x4)(3x-1)-9a(9a+2b)(3x-5y)(-4x)
21
(—ab2-3ab)•—ab4x(x-3)+2x(x-2)-2x(4x-3)
32
(9×104)×(-8×102)(-ab3)(-8a)(-3x)3(2x3y2)
4x•8x4-5y•(-2x2y4)(-4x)3•3x4
(-4a)2•(2a)3-8a3•8a45y•2y3
(-2x2)(-2x+9)7a(7a-4b)(7x+6y)(-9x)
21
(—ab2-6ab)•—ab3x(2x+4)+x(4x+4)-x(x-2)
32
(2×105)×(-5×108)(-ab)(-8a)(3x)3(-4x2y3)
-4x2•2x-2y4•(-7x4y2)(4x)2•5x2
(-4a)2•(-3a)2-2a2•6a7y3•3y
(-x2)(8x+7)-3a(8a-3b)(5x-6y)(-4x)
41
(—ab3+5ab)•—ab4x(4x-3)+3x(x-2)-x(x+1)
54
(8×107)×(-8×104)(-a4b4)(-7a)(3x)3(-4x2y2)
-5x4•5x3-6y•(-7xy)(3x)3•6x2
(3a)3•(2a)2-2a•9a-2y3•4y
(-x2)(9x+3)6a(8a+6b)(9x-9y)(-4x)
31
(—ab3-5ab)•—ab3x(x-1)+x(4x+2)+3x(x-4)
43
(8×104)×(-9×105)(-ab3)(-7a)(4x)2(-4x3y5)
-2x•2x42y3•(-9xy)(-4x)3•7x4
(-4a)3•(-3a)2-4a3•2a3-7y•3y4
(-4x3)(3x+1)-3a(9a+8b)(5x+5y)(-4x)
71
(—ab2-2ab)•—ab4x(x-3)-x(x+3)-x(3x-3)
67
(9×106)×(-8×102)(-a4b3)(-6a3)(-3x)3(4x4y5)
-4x•2x2-5y•(-5xy3)(2x)2•9x4
(-4a)3•(-3a)2-6a•3a39y•2y2
(-x3)(4x-6)-3a(2a+5b)(9x-6y)(-6x)
41
(—ab3-4ab)•—abx(3x+4)-x(x-4)-x(x+4)
34
(4×108)×(-4×104)(-9ab)(-8a4)(4x)3(4x4y2)
-9x•9x-2y3•(-9xy)(3x)2•9x3
(4a)2•(-4a)3-9a•4a4y•5y3
(-x3)(2x+6)-3a(4a+8b)(6x+8y)(-5x)
41
(—ab2+6ab)•—ab33x(4x-4)-x(3x-4)-x(x+1)
54
(3×108)×(-5×103)(-ab4)(-6a3)(-4x)2(-3x4y4)
7x4•8x4-8y2•(-8xy2)(-3x)3•8x4
(-4a)3•(-2a)28a•8a4y2•7y
(-x3)(7x-4)-2a(2a-9b)(3x+5y)(-2x)
61
(—ab2+2ab)•—ab2x(x+2)-x(4x+4)-x(x+2)
56
(9×102)×(-9×103)(-7ab)(-8a4)(-3x)2(4x4y5)
9x3•6x3y•(-4xy3)(3x)2•6x4
(-3a)2•(-4a)33a3•2a3-6y2•8y2
(-x3)(-7x-5)4a(3a+7b)(6x-3y)(-6x)
41
(—ab3+5ab)•—ab23x(x-1)-x(4x-2)+2x(2x+3)
34
(6×103)×(-2×104)(-a4b)(-7a)(-4x)3(4x4y3)
3x2•8x-2y3•(-9xy)(4x)2•6x3
(2a)2•(3a)28a4•3a-7y•2y
(-x3)(-4x-6)8a(5a-5b)(4x+9y)(-5x)
21
(—ab3-3ab)•—ab2x(2x-4)-x(x+2)+3x(x-3)
32
(6×104)×(-8×107)(-3ab)(-5a)(-4x)2(-3x3y5)
-2x•9x-8y•(-4x2y)(-2x)3•8x4
(2a)2•(-2a)3-8a•4a4-2y2•8y3
(-x3)(-6x-1)3a(3a-8b)(7x+7y)(-9x)
71
(—ab3-6ab)•—abx(x+2)-x(x+4)-2x(4x-3)
67
(2×104)×(-5×109)(-ab)(-9a4)(-4x)3(-4x4y2)
5x4•6x5y•(-5xy3)(2x)2•4x3
(-3a)2•(-3a)2-4a•8a2-3y2•4y
(-7x2)(-9x+8)5a(5a-8b)(3x-9y)(-6x)
51
(—ab2+4ab)•—ab33x(3x+4)-2x(4
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