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93) x2 + 8x + 7 = 0

94) x2 - 16x - 17 = 0

95) x2 + 12x + 35 = 0

96) x2 + 18x + 77 = 0

97) x2 + 14x + 33 = 0

98) x2 + 18x + 65 = 0

99) x2 + 19x + 34 = 0

100) x2 + 5x + 6 = 0

101) x2 + 10x + 21 = 0

102) x2 + 14x + 13 = 0

103) x2 + 24x + 119 = 0

104) x2 + 6x + 9 = 0

105) x2 + 20x + 91 = 0

106) x2 + 22x + 85 = 0

107) x2 + 15x + 26 = 0

108) x2 + 16x + 39 = 0

109) x2 + 10x + 25 = 0

110) x2 + 4x + 4 = 0

Приложение 2. Ответы.

1) x1 = 3; x2 = 7

2) x1 = 1; x2 = 7

3) x1 = 3; x2 = 3

4) x1 = 1; x2 = 11

5) x1 = 5; x2 = 7

6) x1 = -1; x2 = -11

7) x1 = 3; x2 = 13

8) x1 = -5; x2 = 2

9) x1 = 2; x2 = -11

10) x1 = 7; x2 = -3

11) x1 = 3; x2 = 17

12) x1 = -7; x2 = 17

13) x1 = 7; x2 = -2

14) x1 = 7; x2 = 17

15) x1 = 2; x2 = -7

16) x1 = 5; x2 = 17

17) x1 = 1; x2 = 17

18) x1 = 7; x2 = 2

19) x1 = -5; x2 = 3

20) x1 = 3; x2 = 1

21) x1 = 7; x2 = 7

22) x1 = -1; x2 = 13

23) x1 = -2; x2 = 3

24) x1 = 3; x2 = -1

25) x1 = 2; x2 = 13

26) x1 = 3; x2 = 5

27) x1 = 5; x2 = -7

28) x1 = 1; x2 = -3

29) x1 = 2; x2 = 17

30) x1 = -1; x2 = 7

31) x1 = -5; x2 = -11

32) x1 = 2; x2 = 5

33) x1 = 2; x2 = 2

34) x1 = 7; x2 = -11

35) x1 = 7; x2 = -17

36) x1 = 1; x2 = 2

37) x1 = 2; x2 = 3

38) x1 = 5; x2 = -17

39) x1 = 3; x2 = 11

40) x1 = -3; x2 = 5

41) x1 = 3; x2 = -13

42) x1 = 7; x2 = 13

43) x1 = 2; x2 = -17

44) x1 = 1; x2 = -5

45) x1 = 5; x2 = 13

46) x1 = 2; x2 = -3

47) x1 = -7; x2 = 11

48) x1 = 1; x2 = -7

49) x1 = 1; x2 = -17

50) x1 = -5; x2 = 7

51) x1 = 5; x2 = 5

52) x1 = 2; x2 = 11

53) x1 = 1; x2 = 5

54) x1 = -1; x2 = 2

55) x1 = -7; x2 = 3

56) x1 = -7; x2 = 13

57) x1 = 1; x2 = -11

58) x1 = 5; x2 = 11

59) x1 = 1; x2 = 13

60) x1 = 5; x2 = -1

61) x1 = 7; x2 = 11

62) x1 = 1; x2 = -13

63) x1 = -2; x2 = 5

64) x1 = -5; x2 = 13

65) x1 = -5; x2 = 17

66) x1 = -2; x2 = 11

67) x1 = 2; x2 = -13

68) x1 = -3; x2 = -1

69) x1 = 1; x2 = 1

70) x1 = -3; x2 = 11

71) x1 = -1; x2 = -2

72) x1 = 3; x2 = -17

73) x1 = -2; x2 = -11

74) x1 = 3; x2 = -11

75) x1 = 7; x2 = -13

76) x1 = -3; x2 = -5

77) x1 = -2; x2 = 13

78) x1 = -2; x2 = -7

79) x1 = -3; x2 = 17

80) x1 = -5; x2 = -2

81) x1 = -2; x2 = 1

82) x1 = 5; x2 = -11

83) x1 = -1; x2 = -1

84) x1 = -1; x2 = -5

85) x1 = -5; x2 = 11

86) x1 = -1; x2 = -17

87) x1 = 5; x2 = -13

88) x1 = -3; x2 = -17

89) x1 = -7; x2 = -7

90) x1 = -1; x2 = 11

91) x1 = -2; x2 = 17

92) x1 = -3; x2 = 13

93) x1 = -1; x2 = -7

94) x1 = -1; x2 = 17

95) x1 = -5; x2 = -7

96) x1 = -7; x2 = -11

97) x1 = -3; x2 = -11

98) x1 = -5; x2 = -13

99) x1 = -2; x2 = -17

100) x1 = -2; x2 = -3

101) x1 = -3; x2 = -7

102) x1 = -1; x2 = -13

103) x1 = -7; x2 = -17

104) x1 = -3; x2 = -3

105) x1 = -7; x2 = -13

106) x1 = -5; x2 = -17

107) x1 = -2; x2 = -13

108) x1 = -3; x2 = -13

109) x1 = -5; x2 = -5

110) x1 = -2; x2 = -2

Приложение 3. Усложненные задачи.

1) x2 - 19x + 78 = 0

2) x2 - 16x + 39 = 0

3) x2 + 2x - 8 = 0