人教版初二数学上册单项式乘多项式练习题精选34.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34.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34
(-x2)(-6x+7)-2a(6a-7b)(4x+9y)(-5x)
51
(—ab3-4ab)•—ab3x(4x-1)+2x(2x+1)+2x(x-3)
45
(8×105)×(-2×102)(-ab)(-3a)(-3x)2(2x4y5)
-9x•5x2-6y2•(-6xy2)(-4x)2•5x2
(-3a)3•(-4a)3-5a•3a-9y2•2y4
(-3x3)(2x+7)5a(8a-6b)(4x+2y)(-6x)
21
(—ab3-4ab)•—ab33x(x-3)+x(x+4)+x(x+3)
32
(6×103)×(-9×108)(-ab3)(-4a2)(-2x)2(4x2y5)
-2x4•7x4-5y2•(-5xy)(3x)2•7x2
(-4a)3•(2a)2-5a•8a8y•7y
(-7x2)(-4x-8)9a(3a+9b)(4x+7y)(-4x)
61
(—ab3+4ab)•—ab22x(4x+4)-x(4x-2)-2x(4x+4)
56
(7×107)×(-6×109)(-a2b2)(-4a4)(4x)3(2x3y5)
-6x•3x9y•(-6x4y3)(4x)3•4x4
(-4a)2•(2a)23a4•9a4y•5y2
(-3x3)(-5x-1)-7a(7a+9b)(8x+2y)(-5x)
31
(—ab2-2ab)•—ab4x(3x+3)+x(3x-4)-x(x-3)
43
(6×102)×(-9×104)(-a4b4)(-7a)(-3x)3(-4x3y3)
4x2•9x33y•(-6xy4)(-4x)3•5x4
(-3a)2•(4a)36a•3a-6y3•2y
(-x3)(6x+2)5a(7a+7b)(4x-8y)(-4x)
71
(—ab2+3ab)•—ab2x(x+2)-x(x+2)-x(2x+3)
67
(2×109)×(-3×108)(-9ab)(-8a)(-3x)3(4x3y5)
-2x•4x4-5y4•(-5xy)(-4x)3•2x2
(3a)3•(2a)2-6a2•9a-4y•2y
(-7x2)(3x+7)-7a(5a-7b)(7x+6y)(-8x)
61
(—ab2-5ab)•—abx(2x+4)-3x(x+4)-x(x-3)
56
(4×104)×(-7×106)(-8a4b)(-5a)(4x)3(2x3y4)
-7x•4x3-8y•(-8x3y)(-2x)2•9x4
(-3a)3•(-2a)32a4•8a42y•3y
(-9x3)(-7x+2)3a(6a+7b)(2x-2y)(-9x)
41
(—ab3+2ab)•—ab3x(x-4)+x(4x-3)+x(x+2)
34
(6×104)×(-4×104)(-ab)(-5a)(-2x)2(3x3y4)
-6x2•4x-6y2•(-5xy4)(4x)2•4x2
(-3a)2•(-4a)2-8a•8a8y3•3y2
(-2x2)(7x-6)9a(2a+2b)(3x+7y)(-3x)
41
(—ab2-6ab)•—ab3x(2x+4)+3x(3x+1)+x(x+2)
54
(8×108)×(-6×108)(-8ab)(-8a)(4x)2(4x4y5)
-7x3•6x2y2•(-7xy)(3x)2•9x2
(4a)3•(-4a)3-4a•5a5y2•4y
(-6x3)(-9x-3)-8a(9a+5b)(8x-8y)(-6x)
41
(—ab3+6ab)•—ab2x(4x-3)+x(3x-3)+2x(4x-4)
34
(6×108)×(-6×103)(-a3b4)(-3a)(-4x)3(-4x4y3)
4x2•4x2y4•(-7xy)(-3x)3•7x3
(2a)3•(4a)23a•7a3-6y•4y
(-6x2)(9x-4)5a(6a-7b)(4x+2y)(-7x)
41
(—ab3+3ab)•—ab2x(3x-1)-x(2x-1)-x(2x+1)
54
(2×106)×(-3×108)(-a2b4)(-4a3)(-4x)2(-2x2y4)
-5x4•3x-4y2•(-5xy)(-4x)3•7x3
(2a)3•(-4a)2-2a•3a-2y•9y4
(-x3)(-6x-4)7a(8a-6b)(9x+7y)(-5x)
41
(—ab2+5ab)•—abx(4x-1)-2x(x-1)-x(2x-3)
34
(4×102)×(-2×103)(-ab)(-7a)(3x)2(2x4y3)
-7x•2x2-4y4•(-2x2y3)(2x)3•3x3
(-3a)2•(2a)37a•6a-9y2•5y3
(-x4)(6x-9)-7a(2a-5b)(2x-7y)(-6x)
41
(—ab2+4ab)•—ab23x(2x+4)-2x(2x+1)+3x(2x+4)
34
(5×103)×(-5×105)(-ab)(-8a)(-4x)2(4x3y2)
6x2•7x-7y•(-5x3y)(-2x)3•9x4
(3a)2•(2a)25a•3a6y2•3y
(-4x2)(5x+6)-6a(5a-4b)(9x+4y)(-4x)
41
(—ab2-5ab)•—abx(x-1)+x(x-3)-x(x-3)
54
(5×108)×(-6×102)(-2ab3)(-8a4)(-2x)3(3x3y4)
-2x3•6x2y•(-2xy)(-3x)2•8x3
(-3a)2•(-3a)3-7a2•9a35y•3y3
(-x2)(-4x-7)3a(8a-7b)(3x-2y)(-8x)
51
(—ab3+5ab)•—ab3x(4x+4)-2x(x+1)+x(x-3)
65
(9×103)×(-7×103)(-9a4b4)(-8a)(-3x)3(-4x3y4)
2x•5x29y3•(-2xy)(2x)3•4x3
(2a)2•(4a)3-7a•2a2y2•3y3
(-x2)(-6x+6)-2a(7a-4b)(4x-4y)(-7x)
41
(—ab2+5ab)•—ab32x(x+3)+4x(x-3)-3x(x-4)
34
(4×102)×(-8×104)(-ab3)(-6a2)(-3x)3(3x4y2)
-8x4•8x32y4•(-4xy4)(4x)3•2x4
(-3a)2•(2a)38a3•4a3-6y•7y
(-x2)(-6x-8)-6a(2a+4b)(8x-2y)(-7x)
41
(—ab2+4ab)•—ab34x(4x-1)+x(x-4)+2x(x+4)
54
(7×109)×(-4×105)(-a3b2)(-4a2)(4x)2(-2x4y4)
5x•5x22y•(-3x4y4)(2x)2•6x4
(4a)2•(4a)3-9a4•3a-7y4•9y4
(-x2)(-4x-8)6a(2a+3b)(3x-9y)(-8x)
31
(—ab3+4ab)•—ab2x(x-2)+4x(x-3)+x(x+1)
43
(3×107)×(-2×104)(-a2b3)(-6a3)(-2x)3(-3x2y2)
-9x•8x2-6y•(-5x2y2)(3x)3•4x4
(-3a)2•(-2a)38a3•4a9y•8y
(-x3)(-2x-4)-5a(7a+5b)(2x+8y)(-2x)
41
(—ab3+2ab)•—ab4x(3x+2)+2x(3x+1)-x(4x-4)
34
(2×108)×(-6×102)(-ab3)(-5a)(3x)3(-4x3y4)
-3x2•4x4-2y•(-3x2y3)(-2x)3•8x2
(2a)3•(2a)29a4•2a32y4•3y
(-x3)(-3x-2)-5a(3a+7b)(9x-2y)(-5x)
51
(—ab2-5ab)•—ab3x(2x-2)+2x(2x+1)+3x(x+1)
65
(6×103)×(-8×105)(-ab4)(-3a2)(4x)3(-4x4y2)
4x•9x3y•(-4xy4)(-2x)3•3x3
(-3a)3•(-2a)34a•4a27y2•4y
(-x4)(3x-4)9a(7a-2b)(2x-4y)(-4x)
21
(—ab3+6ab)•—ab3x(3x+1)+3x(4x+2)+x(x+3)
32
(3×106)×(-2×103)(-5a4b2)(-6a)(4x)3(-4x2y4)
9x•7x2y•(-8x2y)(-3x)3•7x2
(-4a)3•(4a)2-5a•5a4-6y•5y3
(-x2)(-7x-8)-8a(2a+2b)(9x-2y)(-2x)
51
(—ab3-2ab)•—ab2x(x+3)+4x(x-3)-3x(4x+2)
65
(8×104)×(-8×106)(-a4b)(-2a)(3x)2(4x2y5)
6x4•4x-6y•(-8x4y)(-2x)3•2x2
(-4a)2•(-3a)23a•8a8y•5y
(-x3)(-3x-9)8a(7a+3b)(8x+2y)(-2x)
31
(—ab2-4ab)•—abx(3x-4)-4x(2x-3)-3x(4x-2)
43
(3×104)×(-9×108)(-8a3b2)(-4a3)(-3x)3(4x3y5)
3x•5x3-9y•(-2x2y4)(-3x)3•3x3
(-4a)3•(4a)38a•8a-5y•3y4
(-2x2)(4x-4)-6a(5a-8b)(4x-9y)(-8x)
41
(—ab2-2ab)•—ab34x(3x+3)-2x(4x+4)+x(3x-2)
54
(3×107)×(-6×108)(-ab3)(-5a)(-2x)2(2x4y5)
4x•2x35y4•(-8x4y)(-2x)2•2x3
(-3a)3•(4a)3-8a•2a4y4•2y
(-x3)(2x-8)-9a(3a+4b)(9x-9y)(-5x)
51
(—ab3+6ab)•—ab3x(x-3)+x(4x+2)-3x(3x+1)
45
(4×102)×(-2×105)(-5a3b)(-6a)(2x)3(3x2y3)
-2x2•6x4-8y•(-7x2y2)(-3x)2•5x2
(3a)3•(-3a)23a4•8a2-9y•4y2
(-8x4)(2x-2)8a(5a+5b)(4x-9y)(-3x)
51
(—ab3+4ab)•—abx(2x+1)-x(x+1)+x(3x-4)
65
(2×103)×(-2×108)(-a2b4)(-6a)(-4x)3(-3x2y3)
5x•6x4y2•(-9x4y3)(-3x)3•4x4
(3a)3•(-2a)23a2•3a-7y2•8y4
(-2x4)(-8x-6)2a(8a-3b)(6x-7y)(-2x)
31
(—ab3-2ab)•—ab4x(x+3)-2x(2x+3)-4x(x+3)
43
(2×104)×(-9×104)(-ab3)(-5a4)(-3x)2(2x2y3)
-2x3•6x2y•(-5x4y3)(4x)3•9x3
(-4a)3•(-3a)2-5a2•8a-6y•4y2
(-x3)(-8x-9)-8a(2a-3b)(7x+8y)(-7x)
51
(—ab2+6ab)•—ab34x(4x+1)-x(x-3)-2x(3x+3)
45
(8×103)×(-5×105)(-7a2b)(-3a4)(-3x)2(4x2y3)
5x3•9x-8y3•(-4xy)(-3x)3•4x4
(-4a)2•(-4a)33a3•3a-6y4•7y
(-9x3)(-2x+4)-2a(2a+5b)(6x-3y)(-5x)
71
(—ab2-6ab)•—ab2x(x+3)-x(x-1)-x(2x+3)
67
(3×104)×(-2×103)(-2ab2)(-3a3)(2x)2(3x2y2)
-5x•2x9y•(-3x3y3)(3x)2•2x2
(3a)3•(-4a)32a•3a3-4y•5y
(-x4)(-2x-2)-7a(3a-3b)(6x+7y)(-5x)
21
(—ab3-2ab)•—ab2x(x+1)+x(4x-
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