Solving Quadratics by Factorising
Question 1:
6
x
2
−
25
x
−
25
=
0
x
=
−
5
6
or
5
Question 2:
2
x
2
+
11
x
+
15
=
0
x
=
−
5
2
or
−
3
Question 3:
2
x
2
+
9
x
−
5
=
0
x
=
1
2
or
−
5
Question 4:
4
x
2
−
3
x
−
1
=
0
x
=
−
1
4
or
1
Question 5:
9
x
2
−
4
=
0
x
=
−
2
3
or
2
3
Question 6:
6
x
2
−
25
x
+
25
=
0
x
=
5
3
or
5
2
