Solving Quadratics by Factorising
Question 1:
x
2
+
4
x
−
32
=
0
x
=
-8
or
x
=
4
Question 2:
x
2
−
x
−
42
=
0
x
=
-6
or
x
=
7
Question 3:
x
2
+
10
x
+
16
=
0
x
=
-8
or
x
=
-2
Question 4:
x
2
−
5
x
+
4
=
0
x
=
4
or
x
=
1
Question 5:
x
2
−
8
x
+
12
=
0
x
=
2
or
x
=
6
Question 6:
x
2
+
5
x
−
14
=
0
x
=
-7
or
x
=
2
