Solving Quadratics by Factorising
Question 1:
x
2
−
3
x
=
0
x
=
0
or
x
=
3
Question 2:
x
2
−
36
=
0
x
=
6
or
x
=
-6
Question 3:
4
x
2
−
4
=
0
x
=
1
or
x
=
-1
Question 4:
x
2
+
13
x
+
30
=
0
x
=
-10
or
x
=
-3
Question 5:
x
2
−
9
x
=
−
8
x
=
8
or
x
=
1
Question 6:
3
x
2
+
7
x
−
20
=
0
x
=
5
3
or
−
4
