Use the Quadratic Formula to Solve with Surds.
Question 1:
x
2
−
4
x
−
10
=
0
x
=
2
±
14
Question 2:
x
2
+
11
x
+
5
=
0
x
=
-11
±
101
2
Question 3:
x
2
+
2
x
−
7
=
0
x
=
-1
±
2
2
Question 4:
x
2
−
12
x
+
6
=
0
x
=
6
±
30
Question 5:
x
2
+
8
x
−
6
=
0
x
=
-4
±
22
Question 6:
x
2
+
3
x
+
2
=
0
x
=
-1
or
-2
