Test:
Algebraic expressions II - Ambitious
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Question 1:
Simplify the expression
2
a
+
1
3
b
−
5
a
+
d
A
3
a
+
d
B
3
a
−
d
C
−
3
a
+
1
3
b
+
d
D
3
a
+
1
3
b
+
d
Question 2:
Expand
(
3
a
−
1
)
(
−
3
)
A
−
9
a
+
3
B
−
6
a
C
9
a
+
3
D
9
a
−
3
Question 3:
Simplify the expression
3
(
b
−
2
)
−
(
a
+
0.4
)
A
3
b
−
a
+
6.4
B
3
b
+
a
+
6.4
C
−
3
b
−
a
−
6.4
D
3
b
−
a
−
6.4
Question 4:
Simplify
2
5
a
2
b
7
3
A
8
125
a
6
b
21
B
8
125
a
2
b
7
C
8
125
a
b
D
2
5
a
6
b
21
Question 5:
Simplify the expression
a
+
2
2
−
a
−
2
2
A
8
a
B
8
a
2
C
−
8
a
D
−
8
a
2
Question 6:
Reduce the fraction
a
−
b
a
2
+
b
2
−
4
a
b
+
2
a
b
A
a
a
−
b
B
a
−
b
C
1
b
−
a
D
1
a
−
b
Question 7:
Reduce the fraction
x
+
x
x
+
1
A
x
B
x
C
x
+
1
D
x
+
1
Question 8:
Get rid of irrationality in the denominator
2
−
a
2
A
2
−
2
a
2
B
2
+
a
2
C
2
+
2
2
D
2
−
a
2
Question 9:
Using the formula
s
=
s
0
+
v
t
, rearrange it to find
t
A
t
=
v
s
−
s
0
B
t
=
v
s
−
s
0
C
t
=
s
−
s
0
v
D
t
=
s
−
s
0
v
Question 10:
One of the roots of equation
x
2
+
3
x
+
b
is
5
. Find
b
and the second root of the equation.
A
b
=
40
x
2
=
8
B
b
=
−
40
x
2
=
−
8
C
b
=
−
30
x
2
=
−
10
D
b
=
30
x
2
=
10
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