(3X-2)2-(2X+3)2 =0 H
Bài 3: Tìm x, biết: a.
x
2
-
12
x
=
0
d.x
2
-
6
x
+
9
=
0
g.(
x
+
2
)
2
-
x
-
2
=
0
b.x
3
-
4
x
=
0
e.(
3
x
-
2
)
2
-
(
2
x
+
3
)
2
=
0
h.x
2
(
x
-
3
)
+
12
-
4
x
=
0
c.2
x
(
x
-
2018
)
-
x
+
2018
=
0
f.25
x
2
-
4
=
0
k.(
x
-
5
)
2
-
2
x
+
10
=
0