七年级数学下册计算题26.docx

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七年级数学下册计算题26.docx

七年级数学下册计算题26

(7k2-4k)+(k2+2k-4)

(3a2+7a-8b)-(a2-6a-8b)

x2-(7x2-x+9)-(7x-2)

4y2-(5x2-y)+(9x2-2y2)

7

(x2-2xy+—x)-(6x2-2xy-x)

8

15

(—xy+2y2+2)+(x2-—xy-5y2+8)

86

31

(xy+—y+—)-(xy-x+2)

45

(2y+5x-z2)-(4y+8x+4z2)

(k2+8k)+(4k2-4k+2)

(2a2+2a+7b)+(4a2-4a-5b)

x2-(8x2-6x-3)-(x+9)

2y2+(4x2-y)+(5x2-4y2)

5

(9x2-6xy-—x)+(6x2+3xy+5x)

4

51

(—xy+3y2-4)+(x2+—xy-9y2+6)

66

45

(xy-—y+—)-(xy+x+3)

34

(6y-6x-3z2)-(9y+2x-5z2)

(k2-9k)+(7k2-4k-5)

(6a2-8a+3b)+(4a2+3a+8b)

3x2+(x2-2x-7)+(6x-9)

5y2+(8x2+y)-(7x2+6y2)

5

(9x2+3xy-—x)+(4x2+8xy+5x)

6

13

(—xy-4y2+2)-(x2-—xy-6y2-2)

44

17

(xy-—y+—)+(xy+x-5)

68

(4y-8x+2z2)-(3y+9x-z2)

(7k2-4k)+(8k2+9k+7)

(4a2-6a+6b)-(8a2-4a+7b)

x2-(8x2-7x+5)+(8x+6)

4y2+(5x2+y)+(8x2-3y2)

1

(3x2-4xy+—x)+(8x2-4xy-5x)

7

11

(—xy+7y2+4)+(x2-—xy-2y2+5)

55

61

(xy-—y-—)+(xy-x-2)

53

(6y+x+8z2)-(9y+8x+5z2)

(3k2-3k)-(3k2-k-9)

(7a2-a-3b)-(6a2+2a+7b)

4x2-(7x2-5x-7)+(3x+8)

9y2+(9x2+y)-(6x2+4y2)

6

(3x2+9xy-—x)+(6x2-3xy-2x)

7

45

(—xy-8y2+8)-(x2+—xy-7y2+1)

54

44

(xy-—y+—)+(xy-x-6)

55

(2y+3x+5z2)-(3y-8x+z2)

(7k2+7k)+(2k2-5k+8)

(a2+3a-5b)-(3a2-a-2b)

x2-(9x2-4x+6)-(2x+8)

5y2-(5x2+y)+(7x2+y2)

2

(4x2-xy-—x)+(2x2-2xy-3x)

3

11

(—xy+2y2+6)-(x2+—xy-4y2-4)

43

87

(xy+—y-—)+(xy-x-3)

76

(5y-2x-9z2)-(8y+8x-2z2)

(9k2+k)+(k2-9k-3)

(5a2-5a-9b)+(2a2-6a+9b)

3x2+(5x2-2x+9)-(2x-6)

8y2+(5x2+y)-(6x2-8y2)

5

(5x2-6xy-—x)-(9x2-7xy-6x)

6

29

(—xy-5y2+2)-(x2+—xy-y2+7)

38

36

(xy+—y+—)+(xy-x+3)

45

(y+5x-4z2)+(2y+7x-3z2)

(2k2+6k)-(3k2-k+3)

(7a2+a+5b)-(7a2+3a-6b)

7x2+(8x2+7x-9)-(3x-8)

y2-(4x2-y)+(5x2+3y2)

1

(7x2+6xy-—x)-(x2-xy+2x)

6

41

(—xy-4y2+8)-(x2+—xy+7y2+7)

58

16

(xy+—y-—)-(xy+x+2)

55

(3y+9x-3z2)-(2y+2x+z2)

(2k2-5k)-(8k2-7k-4)

(7a2+7a-5b)-(6a2+6a-4b)

6x2+(3x2-2x+1)-(2x+2)

3y2+(5x2-y)-(8x2-3y2)

8

(9x2-xy+—x)+(4x2+8xy-7x)

7

91

(—xy+6y2+6)+(x2+—xy+4y2+5)

85

29

(xy+—y+—)-(xy-x+8)

38

(9y+2x+z2)-(2y+8x-4z2)

(k2+9k)+(7k2-7k-2)

(3a2-5a-b)-(2a2-8a-9b)

5x2+(9x2-3x-8)+(3x+3)

5y2+(6x2+y)-(9x2+4y2)

1

(4x2+9xy-—x)-(9x2-4xy-5x)

6

61

(—xy+3y2-7)+(x2+—xy-4y2-7)

73

71

(xy+—y-—)-(xy-x-2)

67

(4y+4x+4z2)+(8y-4x-5z2)

(5k2+3k)-(8k2-6k+3)

(3a2-8a-7b)-(6a2+a-8b)

x2+(6x2-5x+9)-(2x-7)

3y2+(3x2-y)+(4x2+9y2)

9

(x2-3xy-—x)-(8x2-9xy+2x)

8

81

(—xy-7y2+1)+(x2+—xy-7y2-3)

75

11

(xy+—y+—)+(xy+x+4)

65

(2y-9x+8z2)-(9y+x-6z2)

(5k2-7k)+(9k2-8k-2)

(7a2+5a+3b)-(6a2+8a+6b)

6x2-(2x2+3x-9)-(3x-8)

y2-(x2+y)+(5x2+6y2)

5

(7x2-2xy-—x)-(5x2-5xy-6x)

4

16

(—xy+7y2-4)-(x2+—xy+8y2+5)

57

19

(xy-—y-—)+(xy+x+7)

38

(y-7x-7z2)+(9y-4x+8z2)

(4k2+2k)+(9k2-5k+5)

(5a2+8a+6b)+(8a2-8a-9b)

5x2-(5x2+3x-5)+(6x+2)

8y2-(8x2-y)-(7x2-5y2)

3

(9x2-6xy-—x)+(6x2+4xy-2x)

4

28

(—xy-8y2-8)-(x2+—xy-9y2-9)

37

11

(xy-—y+—)-(xy-x+6)

58

(5y-2x+5z2)+(7y-7x-4z2)

(k2+8k)-(k2+5k-3)

(4a2+4a+4b)+(8a2+7a-3b)

4x2+(9x2+7x+1)+(6x-1)

9y2+(2x2-y)+(8x2+2y2)

1

(6x2-2xy+—x)+(x2+5xy-3x)

6

81

(—xy-8y2+8)+(x2-—xy+y2+9)

73

54

(xy+—y+—)-(xy-x+3)

45

(4y-3x+9z2)+(4y+6x+9z2)

(8k2+8k)-(9k2+5k-4)

(7a2-3a+8b)+(6a2-5a-b)

3x2+(8x2+3x+9)-(5x-3)

6y2+(2x2-y)+(7x2-4y2)

3

(5x2+9xy+—x)-(8x2-4xy+9x)

4

21

(—xy-2y2+4)-(x2+—xy-6y2-8)

37

11

(xy+—y+—)-(xy+x-1)

46

(3y+4x+3z2)+(9y+6x+2z2)

(4k2+7k)+(4k2+6k+8)

(5a2-9a+b)-(3a2-a+5b)

3x2-(3x2+9x-8)+(5x-6)

8y2+(7x2+y)-(4x2-y2)

9

(9x2-3xy+—x)-(4x2-5xy-2x)

8

11

(—xy+y2-9)+(x2+—xy-3y2-9)

34

55

(xy-—y+—)+(xy+x-2)

66

(y-8x-4z2)+(4y-9x+z2)

(4k2-8k)-(4k2+5k-7)

(8a2-6a-9b)-(7a2+4a-b)

7x2+(4x2+6x-9)+(2x-4)

y2+(3x2-y)-(3x2-3y2)

1

(7x2+xy+—x)+(6x2-3xy-6x)

7

42

(—xy-3y2+7)-(x2+—xy+6y2-3)

33

53

(xy+—y+—)+(xy-x-1)

64

(4y-3x+9z2)+(8y-9x+2z2)

(8k2+7k)-(4k2+6k+2)

(5a2-a+7b)-(9a2-7a+9b)

7x2-(3x2+7x-5)+(9x+9)

4y2-(8x2+y)-(6x2-3y2)

6

(4x2-3xy+—x)-(2x2+3xy-5x)

5

65

(—xy+y2-7)-(x2-—xy+6y2-1)

76

46

(xy+—y-—)+(xy+x+7)

57

(7y+8x+z2)-(7y-7x+6z2)

(2k2-k)-(3k2-k-2)

(7a2-7a+5b)+(7a2-5a+9b)

7x2+(4x2-3x+8)-(5x-5)

5y2+(8x2-y)-(5x2+3y2)

5

(3x2-7xy-—x)+(8x2+2xy-6x)

6

79

(—xy-6y2-1)+(x2-—xy+8y2+5)

68

65

(xy+—y+—)-(xy-x-2)

56

(3y+3x+5z2)-(6y-8x+8z2)

(3k2+4k)-(3k2+5k+7)

(a2-6a+2b)+(5a2+3a-3b)

4x2+(7x2-4x-5)+(4x-6)

5y2-(7x2-y)-(2x2-6y2)

7

(7x2+8xy-—x)+(2x2-4xy+8x)

6

33

(—xy-9y2-1)+(x2+—xy-8y2-5)

44

45

(xy-—y+—)-(xy+x+8)

34

(2y+4x-z2)+(2y+8x+2z2)

(5k2-k)-(2k2+7k-2)

(3a2+a-5b)-(4a2+7a+7b)

6x2+(9x2+2x-7)-(4x+1)

5y2+(2x2-y)+(5x2+2y2)

1

(2x2-3xy+—x)-(4x2+5xy+7x)

5

91

(—xy-3y2+8)+(x2-—xy-6y2+3)

87

77

(xy+—y+—)-(xy-x+8)

86

(2y+8x-7z2)+(9y+3x+2z2)

(5k2-9k)-(9k2+8k-9)

(8a2+8a+b)-(9a2+a-2b)

3x2+(3x2+6x-2)+(9x-1)

5y2-(8x2-y)-(8x2-8y2)

1

(9x2-6xy-—x)-(4x2-3xy+8x)

4

41

(—xy+6y2-3)+(x2-—xy+6y2-5)

36

23

(xy-—y+—)-(xy-x+3)

34

(3y-6x+8z2)-(5y-5x+5z2)

(k2-3k)+(8k2+6k-6)

(7a2+4a+6b)+(8a2+5a+9b)

7x2+(9x2+3x+3)-(7x+9)

y2-(6x2+y)+(4x2-9y2)

4

(9x2-6xy-—x)+(8x2+5xy+3x)

5

49

(—xy-8y2+2)-(x2+—xy-3y2+2)

38

18

(xy+—y+—)-(xy-x-6)

47

(2y-8x+4z2)+(7y+x-8z2)

(7k2-3k)-(8k2+k+7)

(a2+9a+5b)+(5a2-a-8b)

5x2-(5x2+8x+1)+(5x-1)

6y2+(9x2-y)+(x2+4y2)

3

(8x2-5xy+—x)+(6x2+6xy+7x)

4

58

(—xy-3y2-5)+(x2-—xy-4y2+9)

47

87

(xy+—y+—)+(xy+x-4)

76

(2y-4x-7z2)-(6y+3x+7z2)

(9k2+7k)-(2k2-6k+9)

(6a2+3a+9b)+(4a2+8a+5b)

8x2-(2x2-5x+9)-(7x-6)

5y2-(3x2+y)+(3x2+5y2)

3

(3x2+9xy-—x)-(3x2-2xy-6x)

4

54

(—xy-5y2+8)+(x2+—xy+3y2+4)

63

11

(xy+—y+—)+(xy-x-3)

58

(7y+7x+5z2)+(4y-9x-3z2)

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