Test:
Factorisation I - Normal
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Question 1:
Factorise:
2
a
+
2
A
4
a
B
2
a
+
1
C
2
(
a
+
1
)
D
a
Question 2:
Factorise:
4
b
+
12
A
16
b
B
8
b
C
4
(
b
+
3
)
D
3
(
b
+
4
)
Question 3:
Factorise:
3
x
+
9
y
A
12
x
y
B
3
(
x
+
y
)
C
12
(
x
+
y
)
D
3
(
3
y
+
x
)
Question 4:
Factorise:
5
a
+
15
a
b
A
3
a
(
5
b
+
1
)
B
5
a
(
3
b
+
1
)
C
3
a
2
b
D
20
a
2
b
Question 5:
Factorise:
3
a
2
+
4
a
A
7
a
2
+
a
B
7
a
3
C
a
(
7
a
+
1
)
D
a
(
3
a
+
4
)
Question 6:
Factorise:
12
a
2
+
144
a
A
a
(
12
a
+
144
)
B
156
a
3
C
8
a
(
a
+
18
)
D
12
a
(
a
+
12
)
Question 7:
Factorise:
7
x
3
+
14
x
2
A
7
x
2
(
x
+
2
)
B
x
(
7
x
+
2
)
C
14
x
(
x
+
1
)
D
21
x
5
Question 8:
Factorise:
3
a
3
b
2
+
6
a
2
b
+
12
a
b
A
3
a
2
b
(
a
b
+
4
a
+
2
)
B
a
b
(
3
a
2
b
+
6
a
+
12
)
C
3
a
b
(
a
2
b
+
2
a
+
4
)
D
21
a
6
b
4
Question 9:
Factorise:
4
x
+
12
z
−
32
y
A
4
(
x
+
4
z
−
8
y
)
B
3
(
x
+
4
z
−
9
y
)
C
4
(
x
+
3
z
−
8
y
)
D
6
(
2
z
−
6
y
+
x
)
Question 10:
Factorise:
x
2
+
3
x
+
2
A
(
x
+
1
)
(
x
−
1
)
B
(
x
+
1
)
(
x
+
2
)
C
5
x
(
x
+
1
)
D
Cannot be factored
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