[文字サイズの変更]
▼
▲
©2024 数学クラブ http://sugaku.club/
月 日( )
● 次の方程式を解きなさい
[222-00]
(1)
2
8
x
−
32
x
=
0
(2)
2
3
x
−
27
x
=
0
(3)
2
7
x
=
7
x
(4)
2
9
x
+
x
=
0
(5)
2
8
x
−
8
x
=
0
(6)
2
8
x
+
56
x
=
0
(7)
2
10
x
+
100
x
=
0
(8)
2
8
x
+
16
x
=
0
(9)
2
8
x
−
40
x
=
0
(10)
2
4
x
+
9
x
=
0
©2024 数学クラブ http://sugaku.club/
月 日( )
【解答例】
(1)
2
8
x
−
32
x
=
0
8
x
(
x
−
4
)
=
0
x
=
0
,
4
(2)
2
3
x
−
27
x
=
0
3
x
(
x
−
9
)
=
0
x
=
0
,
9
(3)
2
7
x
=
7
x
7
x
(
x
−
1
)
=
0
x
=
0
,
1
(4)
2
9
x
+
x
=
0
1
9
x
(
x
+
)
9
=
0
x
1
=
0
,
−
9
(5)
2
8
x
−
8
x
=
0
8
x
(
x
−
1
)
=
0
x
=
0
,
1
(6)
2
8
x
+
56
x
=
0
8
x
(
x
+
7
)
=
0
x
=
0
,
−7
(7)
2
10
x
+
100
x
=
0
10
x
(
x
+
10
)
=
0
x
=
0
,
−10
(8)
2
8
x
+
16
x
=
0
8
x
(
x
+
2
)
=
0
x
=
0
,
−2
(9)
2
8
x
−
40
x
=
0
8
x
(
x
−
5
)
=
0
x
=
0
,
5
(10)
2
4
x
+
9
x
=
0
9
4
x
(
x
+
)
4
=
0
x
9
=
0
,
−
4