Expanding Brackets
Question 1:
7
k
+
8
7
k
+
56
Question 2:
10
9
m
+
8
90
m
+
80
Question 3:
4
5
k
+
6
20
k
+
24
Question 4:
b
4
b
+
7
4
b
2
+
7b
Question 5:
n
5
z
−
9
5
n
z
−
9n
Question 6:
3
y
7
y
−
6
b
21
y
2
−
18
by
