Test:
Algebraic Fractions II - Challenging
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Question 1:
For which values expression
x
2
−
6
x
+
1
4
x
2
−
16
doesn’t have a solution?
A
x
=
4
x
=
−
4
B
x
=
2
x
=
−
2
C
x
=
0
D
x
=
1
Question 2:
For which value of x fraction
12
x
3
−
5
25
x
2
+
90
x
+
81
is undefined?
A
x
=
−
1,8
B
x
=
1
C
x
=
0
D
x
=
1,8
Question 3:
Reorder expression to make y subject
4
x
y
=
5
A
y
=
4
x
5
B
y
=
4
x
−
5
C
y
=
4
x
×
5
D
y
=
5
4
x
Question 4:
Add
2
a
2
−
4
+
a
a
2
−
4
A
1
a
B
1
a
+
2
C
1
a
2
D
1
a
−
2
Question 5:
Add
a
c
+
3
−
a
4
c
A
3
a
c
B
6
a
4
c
C
3
a
+
3
4
c
D
3
a
4
c
Question 6:
Simplify
x
+
2
x
−
2
−
2
A
6
x
B
6
−
x
x
−
2
C
6
+
x
x
−
2
D
6
x
−
2
Question 7:
Simplify
5
c
−
1
−
8
1
+
c
+
3
c
+
7
c
2
−
1
A
20
c
+
1
B
20
c
2
+
1
C
20
c
2
−
1
D
20
c
−
1
Question 8:
Multiply
4
x
2
−
9
3
+
2
x
×
6
x
3
−
2
x
A
−
6
x
B
−
6
x
2
C
6
x
2
D
6
x
Question 9:
Solve the equation
2
x
2
x
−
5
×
x
2
−
25
x
=
0
A
−
5
B
0
C
1
D
5
Question 10:
Simplify
−
3
a
2
b
2
×
12
a
4
b
6
A
27
a
6
b
4
B
−
27
a
b
C
27
a
b
D
−
27
a
6
b
4
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