人教版初二数学上册单项式乘多项式练习题精选32.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32.docx

人教版初二数学上册单项式乘多项式练习题精选32

(-3x4)(3x+3)-7a(2a+3b)(9x+5y)(-5x)

51

(—ab3+6ab)•—ab23x(x-2)+2x(x-2)+x(x-3)

65

(8×108)×(-2×109)(-ab)(-5a4)(-4x)3(-4x4y5)

-8x2•9x7y3•(-6xy)(2x)2•2x2

(3a)2•(-2a)26a4•9a46y4•7y4

(-x3)(-2x-4)4a(2a-5b)(3x-8y)(-5x)

51

(—ab3-6ab)•—ab33x(2x+2)-x(x+1)-x(4x+1)

45

(5×108)×(-9×104)(-2ab)(-7a)(4x)3(-4x4y3)

-4x2•8x37y•(-2xy)(-4x)2•6x4

(4a)3•(4a)25a3•9a4y2•6y3

(-7x2)(-8x+2)3a(6a-9b)(4x+7y)(-7x)

71

(—ab3-5ab)•—ab23x(4x-2)+3x(x-3)-2x(3x+3)

67

(4×106)×(-7×108)(-a2b)(-4a2)(4x)2(4x2y3)

2x4•6x-7y4•(-7x3y2)(3x)3•9x2

(3a)2•(-2a)32a•7a5y•7y

(-2x4)(7x+8)-2a(5a+9b)(7x-2y)(-5x)

21

(—ab3-2ab)•—ab3x(x+4)-2x(4x-4)+2x(x-1)

32

(8×108)×(-4×107)(-6a2b)(-6a4)(-4x)3(-2x3y3)

-6x3•4x24y•(-5xy2)(4x)3•8x4

(4a)2•(3a)2-5a•9a33y2•9y

(-3x2)(2x+6)-4a(6a+6b)(6x-5y)(-9x)

71

(—ab3-6ab)•—ab3x(2x+1)+x(x-1)+x(x+4)

67

(4×108)×(-9×108)(-ab4)(-7a4)(-4x)3(4x3y4)

9x•5x-8y•(-2x4y)(-2x)3•3x4

(-2a)2•(-3a)3-9a•8a28y•3y3

(-x2)(-6x+8)-9a(8a+4b)(5x-9y)(-7x)

51

(—ab3+2ab)•—abx(x+3)-x(x-2)-x(x-3)

65

(8×108)×(-6×109)(-9ab4)(-2a4)(-3x)2(-2x3y2)

2x•9x2-4y•(-6xy3)(-4x)2•4x4

(4a)2•(4a)3-8a3•7a6y4•8y

(-x2)(2x-7)7a(6a-4b)(8x-5y)(-5x)

51

(—ab3-3ab)•—ab32x(x-4)+x(3x-2)-2x(3x-2)

65

(6×109)×(-5×108)(-a4b4)(-7a)(3x)2(-2x2y2)

4x•4x38y•(-6x3y)(-4x)3•6x4

(4a)3•(3a)32a•7a2-8y4•8y

(-9x4)(4x+6)5a(4a-7b)(7x-4y)(-7x)

21

(—ab2-6ab)•—abx(2x+4)+3x(4x-4)+x(x+2)

32

(4×108)×(-2×108)(-6a2b)(-4a)(-4x)3(-2x2y4)

-5x•6x2y•(-7xy4)(-3x)3•5x4

(2a)2•(3a)3-9a2•3a49y•4y

(-6x3)(5x-1)9a(5a+5b)(9x-9y)(-8x)

21

(—ab3-6ab)•—ab2x(x-4)-4x(4x+2)-x(x+3)

32

(6×109)×(-8×109)(-ab)(-4a)(-3x)3(-4x2y2)

4x2•6x3y•(-6xy)(4x)3•3x4

(3a)3•(2a)38a•6a43y4•4y2

(-9x4)(-2x-8)-4a(3a+2b)(6x+8y)(-6x)

71

(—ab2-4ab)•—ab3x(2x+3)+x(x+4)-2x(4x-2)

67

(4×105)×(-9×109)(-ab)(-6a2)(-4x)2(-3x2y5)

9x•2x42y2•(-7xy)(-3x)3•6x4

(4a)3•(3a)39a3•6a4-9y•4y2

(-x3)(-3x-9)-4a(3a-3b)(9x-8y)(-6x)

61

(—ab2-6ab)•—ab2x(x-4)+2x(2x-1)-x(2x-1)

56

(9×104)×(-9×104)(-ab)(-7a)(3x)2(2x4y2)

-8x•7x2-2y4•(-7xy)(-2x)3•2x4

(2a)2•(-3a)22a4•4a46y•8y

(-3x3)(9x+7)8a(3a-6b)(6x-5y)(-2x)

41

(—ab2-4ab)•—ab2x(2x+3)-x(x+2)-x(4x+1)

34

(4×103)×(-9×102)(-3a4b)(-7a)(4x)3(4x2y3)

3x4•4x-4y•(-7xy2)(-3x)2•4x3

(-4a)3•(-2a)3-3a3•5a-9y2•3y

(-7x3)(7x+9)2a(7a-7b)(8x+3y)(-8x)

31

(—ab2-2ab)•—ab4x(3x-3)+3x(x+4)-2x(2x+4)

43

(4×109)×(-2×105)(-4a2b2)(-8a3)(-4x)3(-3x2y3)

6x4•2x44y•(-6xy)(-3x)3•8x3

(4a)2•(-2a)2-3a•3a3y•2y3

(-2x2)(-4x+2)3a(6a-9b)(4x+7y)(-9x)

41

(—ab3-5ab)•—ab32x(x+3)-x(3x+4)-2x(x+3)

34

(3×107)×(-5×104)(-7a3b)(-4a3)(2x)2(-4x2y2)

-4x•5x48y•(-2x4y)(-4x)3•2x2

(3a)3•(-3a)2-2a3•4a28y•7y3

(-2x4)(-3x-3)-6a(4a-8b)(4x-7y)(-2x)

71

(—ab3+2ab)•—abx(x+3)-2x(2x+1)-x(4x-3)

67

(9×104)×(-6×106)(-5ab)(-5a)(2x)3(-3x3y3)

7x•4x8y4•(-3x3y)(4x)2•2x4

(2a)2•(-4a)26a4•6a6y•5y4

(-x3)(-6x-4)-8a(7a+8b)(2x-3y)(-8x)

31

(—ab3-5ab)•—ab3x(x+1)+2x(4x-2)+4x(3x-4)

43

(6×107)×(-4×105)(-3a4b)(-5a3)(-4x)3(3x4y3)

-3x•8x6y4•(-2xy)(2x)2•9x4

(-4a)2•(-3a)23a4•2a8y3•4y

(-2x2)(6x+4)-9a(9a-9b)(8x+7y)(-5x)

31

(—ab3+3ab)•—ab3x(3x-3)+3x(2x+1)+x(x+2)

43

(8×103)×(-4×105)(-3ab3)(-9a2)(3x)3(-3x3y4)

2x2•8x29y•(-3x2y)(2x)3•5x4

(-4a)3•(3a)2-5a4•3a2y•2y3

(-x4)(-8x+4)9a(3a-6b)(6x-7y)(-4x)

51

(—ab2+2ab)•—ab3x(4x+1)-x(4x+2)-x(3x+4)

45

(9×104)×(-4×104)(-ab)(-9a)(4x)3(4x2y2)

-8x3•2x-5y•(-3xy2)(4x)2•4x4

(-3a)3•(-3a)33a•7a2y•3y2

(-x3)(-6x+1)-4a(4a+9b)(4x-6y)(-2x)

71

(—ab3+3ab)•—abx(x-3)-x(3x+2)+3x(3x-2)

67

(2×106)×(-2×109)(-7ab3)(-5a2)(3x)2(-2x2y2)

4x•8x-6y4•(-6x2y)(-2x)2•9x2

(-3a)3•(2a)2-2a4•5a3-7y2•2y3

(-x4)(8x+2)-6a(7a+2b)(5x-4y)(-7x)

61

(—ab2-5ab)•—ab2x(2x-2)+2x(4x+1)+x(4x-3)

56

(4×108)×(-5×109)(-3a4b)(-5a)(2x)3(-3x3y4)

-3x4•4x7y2•(-8xy)(3x)2•6x4

(-4a)3•(3a)2-8a•9a29y•7y2

(-x4)(5x-4)-2a(8a-9b)(5x-7y)(-2x)

61

(—ab3-3ab)•—ab4x(4x+4)-4x(x+3)-4x(x-4)

56

(2×102)×(-8×102)(-8a3b4)(-5a2)(-3x)3(-2x3y3)

-4x2•8x-2y•(-2x4y)(2x)2•8x3

(-2a)3•(2a)3-8a2•9a-2y4•4y

(-3x4)(5x-2)4a(8a+3b)(3x-8y)(-9x)

71

(—ab2-4ab)•—ab3x(4x-1)-3x(3x-4)-4x(3x-1)

67

(5×102)×(-3×105)(-ab3)(-4a)(-3x)2(2x4y2)

8x4•3x-5y•(-3x4y4)(2x)3•5x4

(3a)3•(2a)34a4•8a2-6y•3y2

(-4x2)(3x-7)-3a(9a+2b)(9x-7y)(-4x)

61

(—ab3-6ab)•—ab2x(x+2)-2x(4x+3)-2x(4x-1)

56

(9×103)×(-2×108)(-2a3b)(-5a)(-3x)2(4x3y2)

-3x3•5x-3y2•(-7xy2)(3x)3•5x3

(-2a)2•(4a)2-5a2•5a4-4y•7y

(-6x4)(5x-4)-9a(2a+6b)(9x-6y)(-6x)

61

(—ab3+4ab)•—ab32x(x-3)-4x(x-1)+x(x+3)

56

(2×102)×(-7×107)(-a2b4)(-6a)(2x)2(-4x4y2)

-7x2•7x43y•(-4x3y3)(3x)3•9x4

(4a)2•(-4a)2-8a•2a36y3•3y

(-9x3)(-3x+4)6a(2a+2b)(5x+3y)(-8x)

71

(—ab3+4ab)•—ab2x(x-2)-x(x-1)-x(4x+2)

67

(4×107)×(-9×108)(-2ab)(-2a)(-3x)3(-2x3y5)

-7x•8x-5y2•(-8x3y)(4x)2•5x2

(4a)2•(-4a)2-4a3•5a4-6y2•8y

(-6x4)(5x+5)5a(7a+6b)(9x-4y)(-2x)

21

(—ab2+5ab)•—ab3x(x+2)-x(x+1)-x(x-4)

32

(9×108)×(-2×103)(-8a2b)(-5a4)(-4x)3(4x2y3)

-3x4•8x-4y•(-7xy4)(-3x)3•6x3

(-4a)2•(-2a)24a2•9a4-9y3•2y

(-5x2)(-6x+8)-8a(2a-4b)(4x+2y)(-6x)

51

(—ab2+4ab)•—ab3x(4x+4)+x(x-4)-x(2x+3)

45

(7×109)×(-9×102)(-ab2)(-4a2)(-4x)3(2x2y4)

9x•5x6y2•(-3x3y2)(3x)2•3x4

(-4a)3•(-4a)2-2a3•2a8y•4y2

(-x2)(3x-1)-8a(3a-4b)(3x+8y)(-9x)

21

(—ab2-2ab)•—ab4x(x-1)-3x(4x-1)-x(4x+3)

32

(3×102)×(-5×103)(-ab)(-2a)(2x)3(-3x2y2)

8x2•3x4y3•(-6xy4)(-3x)2•6x3

(4a)2•(-3a)29a2•9a-2y•5y

(-9x4)(-6x-7)-3a(5a+8b)(5x+9y)(-3x)

31

(—ab2-3ab)•—ab4x(x+4)-2x(3x-2)-

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