Solving Quadratics by Factorising
Question 1:
3
x
2
+
2
x
−
8
=
0
x
=
4
3
or
−
2
Question 2:
4
x
2
+
17
x
+
15
=
0
x
=
−
5
4
or
−
3
Question 3:
2
x
2
+
13
x
+
6
=
0
x
=
−
1
2
or
−
6
Question 4:
3
x
2
−
10
x
+
8
=
0
x
=
4
3
or
2
Question 5:
4
x
2
−
12
x
+
9
=
0
x
=
3
2
or
3
2
Question 6:
9
x
2
+
3
x
−
2
=
0
x
=
1
3
or
−
2
3
