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©2026 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
)
=
64
(2)
2
(
x
＋
9
)
−
6
=
0
(3)
2
(
x
＋
8
)
=
4
(4)
2
(
x
−
7
)
−
36
=
0
(5)
2
(
x
−
5
)
=
64
(6)
2
(
x
−
1
)
−
1
=
0
(7)
2
(
x
−
7
)
−
64
=
0
(8)
2
(
x
＋
9
)
−
9
=
0
(9)
2
(
x
＋
8
)
=
1
(10)
2
(
x
−
5
)
−
25
=
0
(11)
2
(
x
＋
8
)
=
4
(12)
2
(
x
−
2
)
=
8
©2026 数学クラブ http://sugaku.club/
月 日（ ）
【解答例】
(1)
2
(
x
−
1
)
=
64
x
−
1
=
±
8
x
=
1
±
8
x
=
9
，
−7
(2)
2
(
x
＋
9
)
−
6
=
0
x
＋
9
6
=
±
x
6
=
−
9
±
(3)
2
(
x
＋
8
)
=
4
x
＋
8
=
±
2
x
=
−
8
±
2
x
=
−6
，
−10
(4)
2
(
x
−
7
)
−
36
=
0
x
−
7
=
±
6
x
=
7
±
6
x
=
13
，
1
(5)
2
(
x
−
5
)
=
64
x
−
5
=
±
8
x
=
5
±
8
x
=
13
，
−3
(6)
2
(
x
−
1
)
−
1
=
0
x
−
1
=
±
1
x
=
1
±
1
x
=
2
，
0
(7)
2
(
x
−
7
)
−
64
=
0
x
−
7
=
±
8
x
=
7
±
8
x
=
15
，
−1
(8)
2
(
x
＋
9
)
−
9
=
0
x
＋
9
=
±
3
x
=
−
9
±
3
x
=
−6
，
−12
(9)
2
(
x
＋
8
)
=
1
x
＋
8
=
±
1
x
=
−
8
±
1
x
=
−7
，
−9
(10)
2
(
x
−
5
)
−
25
=
0
x
−
5
=
±
5
x
=
5
±
5
x
=
10
，
0
(11)
2
(
x
＋
8
)
=
4
x
＋
8
=
±
2
x
=
−
8
±
2
x
=
−6
，
−10
(12)
2
(
x
−
2
)
=
8
x
−
2
2
=
±
2
x
2
=
2
±
2