Test:
Algebraic expressions I - Normal
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Question 1:
Expand and simplify:
(
x
-
2
)
(
x
+
3
)
=
...
A
x
2
+
5
x
-
6
B
x
2
+
2
x
-
6
C
x
2
+
x
-
6
D
x
2
+
x
+
6
Question 2:
Expand and simplify:
(
x
-
1
)
(
x
-
1
)
=
...
A
x
2
-
x
+
1
B
x
2
-
1
C
x
2
-
2
x
+
1
D
x
2
-
4
x
+
1
Question 3:
Simplify
3
x
2
x
5
(
y
-
1
)
x
3
=
...
A
3
x
4
(
y
-
1
)
x
3
B
3
x
7
y
-
1
C
3
x
4
y
-
1
D
3
x
7
(
y
-
1
)
x
3
Question 4:
Simplify:
(
12
x
5
y
3
)
0
=
...
A
12
x
5
y
3
B
1
C
144
x
10
y
6
D
0
Question 5:
Simplify:
(
2
x
3
y
2
x
2
)
2
=
...
A
2
x
4
y
6
B
4
x
6
y
4
C
4
x
8
y
4
D
4
x
2
y
4
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