Solve Using Completing the Square.
Question 1:
x
2
+
6
x
−
5
=
0
x
=
-3
±
14
Question 2:
x
2
+
2
x
−
1
=
0
x
=
-1
±
2
Question 3:
x
2
+
8
x
+
6
=
0
x
=
-4
±
10
Question 4:
x
2
−
2
x
−
7
=
0
x
=
1
±
2
2
Question 5:
x
2
−
10
x
+
10
=
0
x
=
5
±
15
Question 6:
x
2
−
10
x
−
2
=
0
x
=
5
±
3
3