26
Sezione 0
Raccordo con il primo biennio
80
x
2
6
x
þ
9
¼
0
[3, 3]
81
x
2
þ
8
x
þ
18
¼
0
[Impossibile]
82
2
x x
1
ð
Þ ¼
3
1
ffiffi
7
p
2
"
#
83
x
2
1
2
3
x
¼
5
3 2
ffiffi
5
p
h
i
84
x
þ
5
ð
Þ
2
¼
16
[Impossibile]
85
x
2
ð
Þ
2
¼
9
1, 5
½
86
x
2
8
x
þ
7
¼
0
[1, 7]
87
x
2
x
2
¼
0
1, 2
½
88
4
x
2
4
x
þ
1
¼
0
1
2
,
1
2
89
x
2
þ
2
x
þ
2
¼
0
[Impossibile]
90
x
2
7
x
þ
12
¼
0
[3, 4]
91
x
2
þ
7
x
þ
10
¼
0
2, 5
½
92
9
x
2
þ
6
x
þ
1
¼
0
1
3
,
1
3
93
9
x
2
6
x
þ
1
¼
0
1
3
,
1
3
94
3
x
2
x
2
¼
0
2
3
, 1
95
x
2
4
x
¼
21
3, 7
½
96
6
x
2
þ
x
1
¼
0
1
2
,
1
3
97
2
x
2
2
x
þ
1
¼
0
[Impossibile]
98
x
2
þ
4
¼
4
x
[2, 2]
99
4
x
2
þ
1
þ
4
x
¼
0
1
2
,
1
2
100
x
2
2
x
4
¼
0
4, 2
½
101
x
2
þ
x
2
3
¼
0
2
3
, 1
102
x
2
þ
2
x
þ
5
¼
0
[Impossibile]
103
x
2
2
ffiffi
2
p
x
þ
2
¼
0
ffiffi
2
p
,
ffiffi
2
p
104
x
þ
1
ð
Þ
2
¼
25
6, 4
½
105
x x
2
ð
Þ ¼
15
5, 3
½
106
x
1
x
ð
Þ ¼
6
3, 2
½
107
x
þ
2
ð
Þ
2
¼
9
[Impossibile]
108
x
1
2
þ
x
2
þ
1
3
¼
1
1
3
1,
5
2
109
x
þ
2
ð
Þ
x
2
ð
Þ þ
x
1
ð
Þ
2
¼
5
1
ffiffiffiffiffi
17
p
2
,
1
þ
ffiffiffiffiffi
17
p
2
"
#
110
ð
2
x
Þ
2
þ
10
¼
5
x
þ
16
x x
2
28
6
[2, 8]
111
2
x
1
ð
Þ
2
x
þ
1
ð
Þ þ
x
¼
2
x
1
þ
4
x
ð
Þ
3
4
,
1
2
112
10
x
5
6
x
2
þ
x
4
¼
x
5
12
1
3
, 5
113
x
2
4
6
ð
x
þ
2
Þ
2
4
þ
4
x
þ
4
3
¼
0
[2, 2]
114
ð
x
1
Þ
2
¼
x
4
12
2
8
11
,
16
13
115
x x
2
ð
Þ þ
x x
6
ð
Þ þ
43
¼
7
x x
þ
5
ð
Þ
x
5
ð
Þ
[2, 3]
116
3
x
3
ffiffi
2
p
1
¼
x
2
þ
x
þ
1
1
þ
ffiffi
2
p
ffiffi
2
p
,
ffiffi
2
p þ
4
117
x
2
ffiffi
3
p
x
þ
ffiffi
3
p
1
¼
0
ffiffi
3
p
1, 1
118
x
2
3
ffiffi
3
p
x
þ
5
ffiffi
3
p ¼
0
ffiffi
3
p
1, 2
ffiffi
3
p þ
1
119
x
2
2
ð
2
ffiffi
5
p
Þ
x
þ
9 4
ffiffi
5
p
¼
0
2
ffiffi
5
p
, 2
ffiffi
5
p
h
i