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©2025 数学クラブ http://sugaku.club/
月 日（ ）
● 次の方程式を解きなさい
[211-00]
(1)
2
(
x
−
1
)
−
9
=
0
(2)
2
(
x
−
4
)
=
16
(3)
2
(
x
−
2
)
=
10
(4)
2
(
x
−
2
)
=
3
(5)
2
(
x
＋
2
)
=
1
(6)
2
(
x
−
4
)
−
7
=
0
(7)
2
(
x
＋
6
)
−
1
=
0
(8)
2
(
x
＋
3
)
=
1
(9)
2
(
x
−
3
)
=
36
(10)
2
(
x
＋
10
)
=
3
(11)
2
(
x
−
6
)
−
5
=
0
(12)
2
(
x
＋
8
)
−
100
=
0
©2025 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
(
x
−
1
)
−
9
=
0
x
−
1
=
±
3
x
=
1
±
3
x
=
4
，
−2
(2)
2
(
x
−
4
)
=
16
x
−
4
=
±
4
x
=
4
±
4
x
=
8
，
0
(3)
2
(
x
−
2
)
=
10
x
−
2
10
=
±
x
10
=
2
±
(4)
2
(
x
−
2
)
=
3
x
−
2
3
=
±
x
3
=
2
±
(5)
2
(
x
＋
2
)
=
1
x
＋
2
=
±
1
x
=
−
2
±
1
x
=
−1
，
−3
(6)
2
(
x
−
4
)
−
7
=
0
x
−
4
7
=
±
x
7
=
4
±
(7)
2
(
x
＋
6
)
−
1
=
0
x
＋
6
=
±
1
x
=
−
6
±
1
x
=
−5
，
−7
(8)
2
(
x
＋
3
)
=
1
x
＋
3
=
±
1
x
=
−
3
±
1
x
=
−2
，
−4
(9)
2
(
x
−
3
)
=
36
x
−
3
=
±
6
x
=
3
±
6
x
=
9
，
−3
(10)
2
(
x
＋
10
)
=
3
x
＋
10
3
=
±
x
3
=
−
10
±
(11)
2
(
x
−
6
)
−
5
=
0
x
−
6
5
=
±
x
5
=
6
±
(12)
2
(
x
＋
8
)
−
100
=
0
x
＋
8
=
±
10
x
=
−
8
±
10
x
=
2
，
−18