Solving Quadratics by Factorising
Question 1:
x
2
−
2
x
−
63
=
0
x
=
9
or
x
=
-7
Question 2:
x
2
−
36
=
0
x
=
-6
or
x
=
6
Question 3:
x
2
−
4
x
−
45
=
0
x
=
-5
or
x
=
9
Question 4:
x
2
+
17
x
+
72
=
0
x
=
-8
or
x
=
-9
Question 5:
x
2
+
x
−
6
=
0
x
=
-3
or
x
=
2
Question 6:
x
2
+
4
x
−
60
=
0
x
=
6
or
x
=
-10
