Factorise Fully
Question 1:
9
j
+
63
9
j
+
7
Question 2:
21
n
+
30
3
7
n
+
10
Question 3:
80
w
+
24
8
10
w
+
3
Question 4:
4
r
2
−
7r
r
4
r
−
7
Question 5:
9
g
r
−
5g
g
9
r
−
5
Question 6:
42
t
2
+
49
nt
7
t
6
t
+
7
n