人教版初二数学上册单项式乘多项式练习题精选53.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53.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53
(-x3)(4x-8)-8a(2a+4b)(5x-5y)(-2x)
71
(—ab3-5ab)•—ab2x(x+4)-4x(x-1)+4x(x+1)
67
(5×107)×(-6×104)(-ab3)(-9a4)(-4x)3(2x2y2)
4x•9x2-7y•(-3x3y)(4x)2•4x4
(2a)3•(-4a)23a•5a-3y•7y
(-x3)(7x+8)7a(9a-9b)(8x-3y)(-8x)
41
(—ab3-6ab)•—ab34x(3x+3)+x(x+1)-4x(x+4)
54
(7×104)×(-6×102)(-5a2b)(-5a3)(4x)2(4x3y4)
-4x4•6x-3y4•(-7xy)(-2x)3•5x2
(3a)3•(3a)3-5a4•2a4-5y•7y4
(-8x3)(-5x-2)-5a(3a+5b)(3x+4y)(-2x)
71
(—ab3-4ab)•—ab2x(x+3)+2x(x-4)+x(x+3)
67
(3×102)×(-9×106)(-a4b)(-5a2)(2x)2(-3x2y4)
2x3•3x-8y•(-2x4y2)(2x)2•5x2
(-2a)2•(3a)28a•2a4-2y•2y4
(-3x4)(-8x-8)-9a(8a+6b)(5x-9y)(-3x)
31
(—ab2-5ab)•—abx(4x+2)+4x(x+3)+x(x+3)
43
(3×103)×(-5×104)(-8a3b)(-9a)(2x)2(-3x2y2)
9x4•4x3-3y•(-9x4y2)(-4x)2•5x2
(-3a)3•(2a)24a•5a-3y4•3y
(-5x4)(-8x-4)-2a(5a-9b)(9x+9y)(-4x)
41
(—ab2-2ab)•—ab22x(x+3)-2x(x+4)-x(3x+3)
34
(5×108)×(-2×107)(-8ab)(-2a)(3x)2(-2x3y4)
4x2•6x5y•(-3xy4)(4x)3•4x4
(-3a)3•(-2a)32a4•3a3-8y3•4y2
(-x3)(-6x+4)5a(3a-2b)(9x-8y)(-7x)
51
(—ab3-2ab)•—ab2x(x-2)-x(x+2)+x(x+2)
65
(8×103)×(-8×103)(-a2b)(-9a)(2x)2(3x2y3)
-2x•4x-2y•(-4x2y)(4x)3•2x4
(-3a)2•(-4a)3-9a2•6a-6y•6y
(-4x4)(2x-2)8a(2a+3b)(8x-5y)(-4x)
41
(—ab2+3ab)•—ab3x(x+3)+2x(3x-3)+x(x+3)
54
(7×106)×(-6×106)(-3a4b3)(-9a)(3x)2(-3x3y4)
5x•2x2-2y•(-4xy)(4x)3•5x2
(-4a)3•(4a)35a4•7a7y•4y
(-9x2)(2x+5)-5a(6a-2b)(5x+9y)(-7x)
61
(—ab2-2ab)•—abx(4x-2)-2x(x-3)+x(x+3)
56
(4×108)×(-9×103)(-3a4b)(-9a)(-3x)2(-3x4y3)
-3x4•9x4-6y•(-6xy3)(-3x)3•5x3
(-4a)2•(-3a)37a2•3a36y2•7y2
(-4x2)(8x+9)9a(4a+5b)(8x-3y)(-2x)
51
(—ab2+6ab)•—ab3x(4x-3)-x(x+1)-2x(x-4)
45
(5×108)×(-9×108)(-7a4b)(-4a)(4x)3(3x3y3)
8x•5x3-2y•(-8xy)(4x)3•7x2
(3a)2•(3a)26a4•7a3-5y4•3y2
(-2x2)(9x+4)-5a(3a-3b)(2x-5y)(-4x)
51
(—ab2-2ab)•—ab2x(x+3)-2x(2x-1)-x(4x-3)
45
(3×109)×(-4×107)(-6a2b)(-7a2)(-3x)3(4x4y5)
-6x2•8x2y•(-3x2y)(-4x)2•4x3
(2a)2•(-2a)29a4•7a29y4•4y3
(-x4)(-9x-6)-2a(6a+7b)(2x-5y)(-2x)
71
(—ab2+2ab)•—ab4x(x-2)+4x(x-3)-2x(2x+4)
67
(6×108)×(-7×105)(-a2b2)(-7a)(-2x)2(4x4y2)
-4x3•9x4-3y3•(-9x3y3)(-2x)2•9x3
(-3a)2•(-4a)39a3•6a3y3•4y3
(-x3)(-8x-3)-4a(8a+8b)(9x-2y)(-8x)
21
(—ab2+5ab)•—ab34x(2x-2)-x(3x+4)-x(x-4)
32
(9×102)×(-6×108)(-8a4b4)(-2a)(3x)3(4x3y2)
3x•9x5y•(-2x3y)(2x)3•4x2
(-2a)3•(-4a)36a4•5a2y2•7y
(-9x3)(-6x-9)-5a(3a+7b)(2x+2y)(-7x)
51
(—ab3-3ab)•—ab3x(2x-2)+x(x-2)-4x(2x+2)
45
(3×108)×(-4×106)(-2a2b2)(-8a3)(-2x)2(-4x4y3)
-9x•9x3-2y4•(-3xy)(-3x)2•4x3
(-3a)2•(-2a)23a2•3a-7y•5y2
(-x4)(-9x-9)8a(2a+5b)(4x-4y)(-8x)
71
(—ab3+6ab)•—ab24x(x+1)-x(4x-4)-2x(3x-3)
67
(3×102)×(-2×109)(-ab2)(-8a2)(2x)3(4x4y2)
2x•5x2-8y•(-6x3y)(-2x)3•2x2
(2a)3•(4a)22a3•9a2-3y•9y4
(-5x2)(-6x+5)-5a(3a+8b)(5x-6y)(-8x)
21
(—ab3-3ab)•—abx(x+1)-4x(2x-4)-4x(x+4)
32
(5×105)×(-4×104)(-2a4b3)(-8a4)(-4x)2(-2x4y2)
3x•3x-5y3•(-6xy)(-2x)3•9x2
(-2a)2•(-3a)3-9a2•5a4-4y•5y
(-x4)(9x+1)-4a(6a+3b)(7x-9y)(-7x)
51
(—ab2+6ab)•—ab24x(x+1)+4x(x+1)-x(3x-3)
65
(3×105)×(-9×106)(-ab2)(-7a4)(3x)2(2x3y4)
4x•3x4y•(-5x2y3)(4x)3•8x3
(-2a)2•(2a)2-8a•8a2-5y•5y3
(-x2)(-5x-2)4a(2a-6b)(5x-2y)(-5x)
61
(—ab3+4ab)•—ab3x(3x-4)-3x(4x-3)+3x(x-4)
56
(4×107)×(-4×103)(-ab4)(-2a3)(2x)3(-4x3y2)
-6x•6x4-2y3•(-8x3y)(3x)3•6x2
(3a)2•(-4a)3-3a2•4a3-8y•9y4
(-x4)(-3x-1)6a(9a+9b)(7x-5y)(-8x)
31
(—ab2-5ab)•—ab34x(x-1)-4x(x+4)+x(x-3)
43
(3×108)×(-9×107)(-3a4b)(-2a3)(3x)2(3x4y3)
5x4•4x-6y3•(-7xy)(-3x)3•7x3
(3a)3•(3a)28a•4a2y•7y
(-x4)(2x+7)6a(8a+6b)(2x-3y)(-3x)
51
(—ab2+5ab)•—abx(4x-3)-x(x+1)-4x(2x+2)
65
(3×109)×(-5×106)(-4a2b3)(-5a)(-3x)2(-4x2y5)
6x•3x-7y•(-3xy3)(-4x)2•3x3
(3a)2•(-2a)24a•2a3-3y4•2y
(-x3)(8x-3)6a(6a+8b)(3x+5y)(-7x)
51
(—ab3+3ab)•—ab3x(x+4)+x(x+4)+4x(x+3)
65
(9×109)×(-4×104)(-5ab3)(-3a3)(2x)3(2x3y2)
6x•5x4-6y2•(-3x4y)(-2x)3•4x2
(4a)2•(4a)27a•2a49y•6y4
(-x3)(7x+6)5a(2a-9b)(7x-8y)(-7x)
61
(—ab3+2ab)•—ab2x(x-3)+3x(2x-1)-x(2x-3)
56
(3×102)×(-5×108)(-9ab)(-8a2)(-2x)2(-2x2y4)
5x•7x4y2•(-7x4y)(-2x)2•6x4
(2a)3•(3a)38a•8a5y•6y
(-8x3)(6x-9)-9a(5a+8b)(6x-6y)(-7x)
21
(—ab2-6ab)•—ab2x(x+4)+x(4x+1)+x(2x-2)
32
(5×106)×(-7×107)(-9ab4)(-7a2)(-3x)3(4x2y5)
7x4•8x8y3•(-9xy2)(-4x)3•2x3
(4a)2•(-2a)2-4a2•2a2-9y3•8y2
(-x3)(6x+8)-7a(4a-6b)(2x+4y)(-4x)
31
(—ab3-6ab)•—abx(x-3)-x(4x-2)-x(x+2)
43
(9×108)×(-4×103)(-4ab2)(-8a)(4x)3(4x2y4)
-2x•5x44y•(-4x2y)(4x)2•4x4
(2a)2•(-2a)24a3•5a4y•5y2
(-3x2)(5x-6)-9a(9a+5b)(6x-4y)(-3x)
71
(—ab3-3ab)•—ab2x(2x-1)+4x(x+3)+3x(x+4)
67
(3×107)×(-9×103)(-ab4)(-4a)(3x)3(-2x4y5)
-5x2•9x5y•(-4x3y4)(2x)2•6x2
(3a)2•(4a)2-5a•3a-4y•4y
(-x3)(-2x-7)2a(9a-3b)(9x+2y)(-4x)
41
(—ab2+2ab)•—ab32x(x+3)+4x(3x+1)+3x(x+2)
34
(5×106)×(-9×105)(-a2b3)(-2a4)(4x)3(2x2y2)
5x•3x25y•(-4x4y3)(2x)3•6x3
(3a)3•(-4a)3-6a•8a39y•2y
(-9x2)(-2x-8)-5a(7a+3b)(8x+4y)(-2x)
21
(—ab2+4ab)•—ab2x(x-4)-2x(4x-1)-3x(x+2)
32
(7×102)×(-8×102)(-2a4b)(-8a)(2x)2(4x2y3)
6x•5x-3y3•(-2xy)(-2x)2•2x4
(3a)3•(3a)22a•9a2-7y•8y
(-x3)(9x+5)-8a(9a+8b)(5x-8y)(-4x)
41
(—ab2-6ab)•—ab2x(x+3)+3x(4x+4)+x(x+4)
34
(8×106)×(-7×106)(-a2b2)(-6a)(3x)3(-2x4y4)
-3x•3x36y•(-6xy)(3x)3•7x3
(3a)3•(4a)3-8a•9a37y2•2y2
(-x2)(-3x-1)-7a(8a-7b)(5x+2y)(-4x)
21
(—ab3+5ab)•—ab2x(2x+1)+3x(3x-1)-4x(x-3)
32
(5×102)×(-9×103)(-a4b)(-5a)(-3x)3(4x2y4)
6x•4x48y•(-8xy2)(3x)2•2x2
(4a)3•(-2a)33a•8a-2y•5y3
(-x4)(-6x-5)4a(2a+9b)(9x-3y)(-6x)
31
(—ab2+4ab)•—ab32x(x-1)+4x(x+2)-x(2x-3)
43
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