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Class VI
Class VII
Class VIII
Class IX
Class X
SSC Grade X - Quadratic Equations
Question
1
1.
Solve :
√
(
5
x
2
−
38
x
+
48
)
=
(
x
−
6
)
1
2
√
3
,
6
√
3
1
2
√
2
,
6
√
2
1
2
,
6
1
2
√
5
,
6
√
5
1
2
√
4
,
6
√
4
Question
2
2.
Find the discriminant of the quadratic equation
(
x
2
−
2
x
+
1
)
=
0
-2
-1
3
0
1
Question
3
3.
Find the roots of the quadratic equation
(
81
x
2
−
16
)
=
0
(
4
11
,
(
-4
7
)
)
(
4
11
,
(
-4
9
)
)
(
2
3
,
(
-4
7
)
)
(
2
3
,
(
-2
3
)
)
(
4
9
,
(
-4
9
)
)
Question
4
4.
The denominator of a fraction exceeds the numerator by
3
.
The square of the fraction is equal to
100
169
. Find the fraction
10
11
10
13
8
13
2
3
12
13
Question
5
5.
Solve :
(
x
2
−
2
x
)
2
−
13
(
x
2
−
2
x
)
+
42
=
0
(
−
2
+
2
√
2
)
,
(
−
1
−
2
√
2
)
,
(
−
2
+
√
7
)
,
(
−
2
−
√
7
)
(
1
+
2
√
2
)
,
(
1
−
2
√
2
)
,
(
1
+
√
7
)
,
(
1
−
√
7
)
(
3
+
2
√
2
)
,
(
3
−
2
√
2
)
,
(
3
+
√
7
)
,
(
3
−
√
7
)
(
1
+
2
4
√
2
)
,
(
1
−
2
4
√
2
)
,
(
1
+
4
√
7
)
,
(
1
−
4
√
7
)
(
1
+
4
)
,
(
1
−
4
)
,
(
1
+
7
)
,
(
1
−
7
)
Question
6
6.
Find the number which is less than its square by 20
5
2
8
6
4
Question
7
7.
Solve :
12
x
2
b
2
−
x
b
−
6
= 0
−
2
3
b
,
6
8
b
−
1
b
,
1
2
b
−
1
3
b
,
1
b
−
1
b
,
1
b
−
1
2
b
,
3
5
b
Question
8
8.
The product of two consecutive numbers is 20. Find the numbers
4 , 5 or -4,-5
5 , 6 or -5 , -6
6 , 7 or -6 , -7
2 , 2 or -2 , -2
3 , 4 or -3 , -4
Question
9
9.
Find the roots of the quadratic equation
(
6
x
2
+
8
x
)
=
0
(
1
,
-2
)
(
2
,
-2
)
(
0
,
(
-4
3
)
)
(
1
,
(
-4
3
)
)
Question
10
10.
Solve :
(
x
4
−
7
x
2
+
10
)
=
0
4
√
5
,
(
−
4
√
5
)
,
4
√
2
,
(
−
4
√
2
)
5
,
(
−
5
)
,
2
,
(
−
2
)
√
5
,
(
−
√
5
)
,
√
2
,
(
−
√
2
)
√
8
,
(
−
√
8
)
,
√
5
,
(
−
√
4
)
√
2
,
(
−
√
3
)
,
√
1
2
,
(
−
√
1
2
)
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