人教版初二数学上册单项式乘多项式练习题精选47.docx
《人教版初二数学上册单项式乘多项式练习题精选47.docx》由会员分享,可在线阅读,更多相关《人教版初二数学上册单项式乘多项式练习题精选47.docx(33页珍藏版)》请在冰豆网上搜索。
人教版初二数学上册单项式乘多项式练习题精选47
(-x2)(2x-8)4a(6a-6b)(6x-2y)(-7x)
51
(—ab2-5ab)•—abx(4x+3)-2x(3x-3)+x(3x-3)
65
(7×104)×(-9×108)(-a4b)(-6a)(3x)2(4x3y3)
-7x•4x-3y•(-7x2y)(4x)3•7x3
(-4a)3•(3a)3-9a2•5a-6y•7y3
(-6x4)(2x-9)9a(8a+4b)(8x-7y)(-4x)
41
(—ab3+5ab)•—abx(4x+4)+x(x-1)-3x(2x+1)
54
(3×103)×(-8×106)(-a2b)(-6a)(-4x)2(2x4y2)
-9x•5x6y2•(-6x2y)(-4x)2•9x2
(-4a)3•(-2a)32a•8a6y•4y2
(-3x4)(-3x-9)-2a(9a-9b)(5x-9y)(-2x)
41
(—ab2+5ab)•—ab3x(x-1)-2x(x+2)+x(x+4)
54
(4×109)×(-2×106)(-6ab)(-2a)(-2x)3(2x4y2)
-9x•9x3-3y•(-3xy)(3x)2•2x3
(4a)3•(-2a)3-7a3•5a36y4•2y4
(-9x4)(-6x+9)6a(9a+7b)(6x+9y)(-5x)
51
(—ab3+5ab)•—abx(3x+3)+2x(3x-2)-x(3x+1)
45
(7×102)×(-4×102)(-ab3)(-6a)(3x)3(4x4y4)
-8x3•7x-9y2•(-3xy4)(-3x)2•4x4
(-3a)3•(-2a)38a•7a26y3•4y3
(-3x3)(-8x+7)-3a(4a-5b)(4x+6y)(-4x)
41
(—ab2+6ab)•—abx(2x+3)+2x(2x+4)+x(2x-2)
34
(4×104)×(-4×102)(-9a4b)(-4a2)(3x)3(-2x2y2)
-9x4•5x43y2•(-5xy2)(-3x)2•2x4
(-2a)2•(4a)22a3•8a-2y•7y4
(-x2)(-2x-4)-3a(7a+9b)(3x+5y)(-4x)
51
(—ab2+6ab)•—ab32x(x+2)-x(x+4)-3x(x+3)
45
(3×108)×(-7×106)(-ab)(-5a2)(4x)2(-3x4y5)
2x•3x-5y3•(-9xy2)(4x)2•4x4
(-4a)2•(-2a)2-7a3•7a3-7y3•2y4
(-5x2)(-2x-3)9a(5a+6b)(9x+4y)(-8x)
51
(—ab2-2ab)•—abx(x+4)+3x(2x-2)-x(4x+4)
65
(2×104)×(-3×108)(-9a3b)(-7a4)(4x)2(-2x4y2)
8x•6x-6y•(-3xy4)(3x)2•9x2
(-3a)3•(-3a)3-6a4•6a-7y2•7y3
(-3x4)(-4x+4)-6a(4a+8b)(6x+3y)(-4x)
21
(—ab3-4ab)•—ab34x(x+2)-x(4x+4)+2x(3x-2)
32
(4×107)×(-8×104)(-a4b)(-7a3)(2x)3(-4x3y2)
9x2•3x-2y•(-3x4y3)(3x)2•9x4
(-3a)2•(2a)37a•2a6y•4y2
(-x4)(-8x+2)-2a(6a-7b)(4x-7y)(-8x)
41
(—ab2+4ab)•—ab24x(x+4)+3x(2x+1)+x(x+2)
54
(8×102)×(-8×103)(-a2b)(-2a)(-4x)3(3x4y3)
-3x•2x4-5y•(-4x3y)(-2x)2•3x3
(4a)2•(4a)3-2a•4a4-6y4•2y
(-x3)(5x+3)-6a(7a+2b)(7x-7y)(-4x)
61
(—ab3-5ab)•—ab4x(2x+1)+x(3x+3)+x(x+1)
56
(2×105)×(-6×103)(-ab)(-6a4)(-2x)2(3x2y3)
5x•6x8y•(-3xy4)(-4x)3•8x2
(4a)3•(2a)2-2a•9a35y3•9y2
(-x4)(-4x-4)7a(5a+4b)(7x+2y)(-7x)
61
(—ab2-3ab)•—ab33x(3x+4)+x(x+3)-x(x-2)
56
(7×102)×(-6×109)(-ab2)(-4a3)(-3x)3(-4x2y5)
8x•4x37y2•(-4xy)(4x)2•5x3
(3a)2•(-4a)2-2a•8a38y•5y
(-x3)(7x-9)-8a(2a+9b)(6x+7y)(-8x)
61
(—ab2+5ab)•—abx(x-2)-x(x-1)-2x(x+4)
56
(3×105)×(-4×108)(-9a4b)(-5a3)(-2x)2(4x4y2)
-6x•7x36y•(-6x2y4)(-3x)3•4x4
(2a)2•(-4a)2-8a2•5a2y3•7y
(-x4)(-5x+4)9a(6a-9b)(5x-5y)(-3x)
51
(—ab2-5ab)•—abx(2x+2)-x(4x+4)+4x(x+4)
65
(7×105)×(-6×106)(-8a3b)(-7a)(-4x)3(-4x3y2)
-6x•3x3y3•(-9xy)(-2x)3•3x2
(-3a)3•(2a)22a4•4a-5y•4y
(-x4)(-8x+3)5a(6a-3b)(2x+2y)(-5x)
51
(—ab2-2ab)•—ab4x(2x+2)-x(x-2)+x(3x-2)
45
(7×108)×(-4×105)(-ab)(-5a)(2x)2(3x2y2)
-4x•4x7y•(-4xy3)(-3x)3•8x2
(-2a)2•(3a)2-9a3•6a2-9y4•6y
(-x4)(-5x+6)-4a(8a+3b)(6x-9y)(-4x)
51
(—ab2-2ab)•—abx(x-4)+x(x-1)-2x(x-2)
45
(7×107)×(-5×109)(-7a4b)(-8a4)(-3x)2(-4x2y2)
-8x•4x49y•(-7x3y3)(3x)3•8x2
(2a)3•(3a)36a•9a33y4•2y2
(-x2)(-2x+9)3a(5a-8b)(3x+2y)(-7x)
51
(—ab3+4ab)•—ab3x(x+4)-4x(x+4)+2x(x-3)
65
(6×102)×(-3×109)(-9a4b)(-8a3)(-3x)2(-3x4y3)
-2x4•2x-7y•(-3x3y4)(2x)3•9x4
(2a)3•(-2a)34a4•2a3-4y4•8y
(-x2)(-7x+8)4a(6a-5b)(9x-3y)(-6x)
51
(—ab3-5ab)•—ab24x(x-3)-x(4x+3)+4x(x+4)
45
(3×106)×(-5×107)(-ab2)(-3a3)(-2x)3(-4x2y2)
-8x2•8x3-8y•(-7xy4)(3x)2•9x4
(3a)2•(-2a)3-2a3•9a-9y•4y3
(-7x4)(-8x-7)-3a(7a+9b)(5x+2y)(-7x)
51
(—ab2+2ab)•—ab4x(2x+3)-3x(4x+1)+2x(2x+1)
45
(2×108)×(-8×103)(-ab3)(-2a2)(4x)3(3x2y2)
8x•9x3-2y•(-3xy2)(2x)3•3x2
(-4a)2•(-4a)3-4a4•4a45y2•6y3
(-5x3)(7x+4)-4a(9a-6b)(2x+6y)(-5x)
71
(—ab3+2ab)•—ab24x(x-3)+4x(x+3)-x(2x+4)
67
(2×109)×(-3×102)(-9ab3)(-6a)(4x)3(4x2y4)
-6x2•8x33y3•(-8xy)(-2x)2•5x2
(3a)2•(-4a)2-8a•7a6y4•3y
(-8x2)(-5x+8)7a(5a-9b)(2x+2y)(-7x)
51
(—ab3-4ab)•—ab4x(2x+4)-x(x-1)-x(2x+4)
45
(5×104)×(-4×106)(-a3b4)(-4a4)(-4x)3(3x3y2)
2x•3x2y•(-2x2y3)(3x)3•6x4
(2a)2•(3a)23a4•9a4-4y2•5y
(-x4)(4x+7)-5a(8a+9b)(4x-2y)(-6x)
31
(—ab3-4ab)•—ab4x(3x+4)-x(3x+2)+x(x+4)
43
(3×106)×(-4×107)(-9ab4)(-5a)(-4x)2(2x2y4)
5x•7x26y•(-3xy3)(4x)2•8x2
(-2a)3•(2a)3-9a•4a4-6y•5y
(-2x2)(-8x-9)-8a(7a+4b)(7x-5y)(-9x)
71
(—ab3+5ab)•—abx(4x-1)+4x(x+4)+x(3x-4)
67
(2×103)×(-3×105)(-ab3)(-8a)(4x)2(-4x4y4)
-7x3•4x2-2y2•(-4xy3)(2x)3•4x3
(2a)2•(3a)3-7a•4a29y2•6y
(-x3)(4x-7)2a(7a-6b)(8x+8y)(-2x)
41
(—ab2+2ab)•—ab3x(3x+4)-x(x+2)+4x(x-3)
54
(8×103)×(-4×104)(-8a3b2)(-6a3)(-2x)2(4x2y3)
7x3•6x-5y3•(-7x2y)(3x)3•9x4
(-4a)2•(-4a)26a•7a26y•6y
(-x2)(4x+8)-9a(4a+7b)(6x-5y)(-8x)
21
(—ab3-2ab)•—ab22x(4x+4)+x(x+3)-x(2x+1)
32
(5×108)×(-6×108)(-ab)(-5a)(-2x)3(3x3y2)
-4x2•9x3y•(-6xy4)(-2x)3•5x4
(-4a)3•(2a)26a2•6a-6y•3y
(-4x2)(-6x-6)3a(6a+6b)(7x-5y)(-5x)
31
(—ab2+3ab)•—ab2x(x-1)+x(x-4)-x(x-1)
43
(6×102)×(-8×105)(-a3b2)(-7a3)(-3x)3(-4x3y3)
-9x•9x8y3•(-8xy)(2x)2•6x3
(-3a)3•(-3a)23a•3a-4y•8y
(-x4)(6x+2)6a(3a+3b)(3x+4y)(-6x)
51
(—ab2-4ab)•—abx(2x-3)-x(3x+1)-x(x-3)
65
(8×103)×(-3×105)(-a3b)(-5a2)(3x)2(4x2y5)
6x4•2x2-5y4•(-4x3y3)(-2x)3•5x4
(-2a)2•(3a)2-8a•8a2-4y2•9y2
(-x2)(-3x-3)-2a(7a+2b)(7x-7y)(-3x)
51
(—ab2+5ab)•—abx(2x-2)+x(2x+3)-x(2x-1)
45
(5×104)×(-9×106)(-7ab)(-5a)(-3x)3(-3x4y2)
-7x4•5x3-7y•(-8xy4)(4x)2•7x2
(4a)3•(4a)22a2•9a4-9y4•8y
(-7x3)(-7x+3)3a(7a+4b)(6x+6y)(-5x)
41
(—ab2+6ab)•—ab24x(x-4)+2x(3x-3)+2x(x-3)
54
(5×108)×(-9×109)(-ab2)(-9a)(3x)2(3x4y2)
-4x3•4x23y•(-6xy3)(-3x)3•9x2
(3a)3•(-3a)34a•4a28y•9y
(-2x2)(-8x-4)-3a(7a+2b)(2x-2y)(-4x)
41
(—ab2+5ab)•—ab3x(2x-4)+x(4x+1)+x(x-2