Solving Quadratics by Factorising
Question 1:
x
2
−
9
x
=
0
x
=
0
or
x
=
9
Question 2:
x
2
−
1
=
0
x
=
1
or
x
=
-1
Question 3:
3
x
2
−
12
=
0
x
=
2
or
x
=
-2
Question 4:
x
2
−
5
x
−
36
=
0
x
=
-4
or
x
=
9
Question 5:
x
2
+
14
x
=
−
49
x
=
-7
Question 6:
2
x
2
−
9
x
+
4
=
0
x
=
1
2
or
4
