Use the Quadratic Formula to Solve with Surds.
Question 1:
x
2
−
8
x
+
10
=
0
x
=
4
±
6
Question 2:
x
2
−
8
x
−
10
=
0
x
=
4
±
26
Question 3:
x
2
−
11
x
+
1
=
0
x
=
11
±
3
13
2
Question 4:
x
2
+
x
−
5
=
0
x
=
-1
±
21
2
Question 5:
x
2
+
10
x
−
9
=
0
x
=
-5
±
34
Question 6:
x
2
−
13
x
+
3
=
0
x
=
13
±
157
2