Use the Quadratic Formula to Solve with Surds.
Question 1:
x
2
−
x
−
7
=
0
x
=
1
±
29
2
Question 2:
x
2
−
3
x
−
5
=
0
x
=
3
±
29
2
Question 3:
x
2
−
8
x
−
3
=
0
x
=
4
±
19
Question 4:
x
2
−
12
x
−
5
=
0
x
=
6
±
41
Question 5:
x
2
−
4
x
+
3
=
0
x
=
3
or
1
Question 6:
x
2
+
10
x
+
10
=
0
x
=
-5
±
15