Expanding Brackets
Question 1:
10
b
−
5
10
b
−
50
Question 2:
3
7
a
−
5
21
a
−
15
Question 3:
10
7
x
−
6
70
x
−
60
Question 4:
f
2
f
−
5
2
f
2
−
5f
Question 5:
u
5
r
+
6
5
r
u
+
6u
Question 6:
4
h
2
h
+
3
n
8
h
2
+
12
hn
