Use the Quadratic Formula to Solve with Surds.
Question 1:
x
2
−
5
x
+
6
=
0
x
=
3
or
2
Question 2:
x
2
−
13
x
+
8
=
0
x
=
13
±
137
2
Question 3:
x
2
−
9
x
−
2
=
0
x
=
9
±
89
2
Question 4:
x
2
+
14
x
−
5
=
0
x
=
-7
±
3
6
Question 5:
x
2
+
6
x
−
4
=
0
x
=
-3
±
13
Question 6:
x
2
−
6
x
+
5
=
0
x
=
5
or
1
