Answer:
x
=
−
2
+
√
10
and
x
=
−
2
−
√
10
Step-by-step explanation:
x
2
+
4
x
=
6
or
x
2
+
4
x
+
4
=
6
+
4
or
(
x
+
2
)
2
=
10
or
x
+
2
=
±
√
10
or
x
=
−
2
±
√
10
∴
x
=
−
2
+
√
10
and
x
=
−
2
−
√
10
Solution:
x
=
−
2
+
√
10
and
x
=
−
2
−
√
10
[Ans]
Step-by-step explanation: