EduSahara™ Assignment
Name : Quadratic Equations1
Chapter : Quadratic Equations
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Solve :
56
x
2
+
11
a
b
x
−
12
a
2
b
2
= 0
(i)
−
4
a
b
7
,
3
a
b
8
(ii)
−
2
a
b
7
,
5
a
b
8
(iii)
−
4
a
b
9
,
3
a
b
10
(iv)
−
4
a
b
5
,
a
b
2
(v)
−
6
a
b
7
,
a
b
8
Question
2
2.
Solve :
54
x
2
b
2
−
33
a
x
b
+
4
a
2
= 0
(i)
a
6
b
,
4
a
9
b
(ii)
−
a
6
b
,
2
a
9
b
(iii)
a
2
b
,
2
a
3
b
(iv)
a
8
b
,
4
a
11
b
(v)
a
4
b
,
4
a
7
b
Question
3
3.
Solve :
10
x
2
+
3
a
x
−
a
2
= 0
(i)
3
a
5
,
−
a
6
(ii)
−
a
5
,
−
5
a
6
(iii)
a
5
,
−
a
2
(iv)
a
7
,
−
3
a
8
(v)
a
3
,
−
3
a
4
Question
4
4.
Solve :
4
x
2
a
2
−
1
= 0
(i)
0
,
3
2
a
(ii)
−
1
a
,
1
a
(iii)
−
1
2
a
,
1
2
a
(iv)
−
1
3
a
,
1
4
a
(v)
−
1
a
,
−
1
2
a
Question
5
5.
Solve :
15
x
2
−
19
b
x
+
6
b
2
= 0
(i)
b
,
b
(ii)
3
b
5
,
4
b
6
(iii)
3
b
7
,
b
2
(iv)
b
5
,
b
3
Question
6
6.
Solve :
8
x
2
b
2
+
2
x
b
−
3
= 0
(i)
−
1
4
b
,
3
2
b
(ii)
−
5
4
b
,
−
1
2
b
(iii)
−
3
4
b
,
1
2
b
(iv)
−
1
2
b
,
1
4
b
(v)
−
3
2
b
,
1
b
Question
7
7.
Solve :
21
x
2
+
29
a
2
b
x
+
10
a
4
b
2
= 0
(i)
−
4
a
2
b
9
,
−
3
a
2
b
7
(ii)
−
8
a
2
b
9
,
−
a
2
b
(iii)
−
6
a
2
b
7
,
−
a
2
b
(iv)
−
2
a
2
b
3
,
−
5
a
2
b
7
(v)
−
6
a
2
b
11
,
−
5
a
2
b
9
Question
8
8.
Solve :
4
x
2
a
4
b
2
−
4
x
a
2
b
+
1
= 0
(i)
3
6
a
2
b
,
1
2
a
2
b
(ii)
3
4
a
2
b
,
1
a
2
b
(iii)
1
6
a
2
b
,
−
1
2
a
2
b
(iv)
5
6
a
2
b
,
3
2
a
2
b
(v)
3
8
a
2
b
,
1
4
a
2
b
Question
9
9.
Solve :
21
x
2
b
2
−
16
a
2
x
b
+
3
a
4
= 0
(i)
−
a
2
3
b
,
a
2
7
b
(ii)
a
2
b
,
3
a
2
5
b
(iii)
a
2
5
b
,
a
2
3
b
(iv)
a
2
3
b
,
3
a
2
7
b
(v)
a
2
b
,
5
a
2
7
b
Question
10
10.
Solve :
12
x
2
a
4
−
16
b
x
a
2
+
5
b
2
= 0
(i)
b
a
2
,
5
b
4
a
2
(ii)
3
b
2
a
2
,
7
b
6
a
2
(iii)
b
4
a
2
,
5
b
8
a
2
(iv)
b
2
a
2
,
5
b
6
a
2
(v)
−
b
2
a
2
,
b
2
a
2
Question
11
11.
Solve :
21
x
2
+
22
a
b
2
x
+
5
a
2
b
4
= 0
(i)
−
5
a
b
2
7
,
−
a
b
2
3
(ii)
−
a
b
2
,
−
a
b
2
(iii)
−
3
a
b
2
7
,
a
b
2
3
(iv)
−
5
a
b
2
9
,
−
a
b
2
5
Question
12
12.
Solve :
14
x
2
+
15
a
b
2
x
+
4
a
2
b
4
= 0
(i)
−
4
a
b
2
9
,
−
a
b
2
4
(ii)
−
4
a
b
2
7
,
−
a
b
2
2
(iii)
−
2
a
b
2
7
,
a
b
2
2
(iv)
−
6
a
b
2
7
,
−
3
a
b
2
2
(v)
−
4
a
b
2
5
,
−
a
b
2
Question
13
13.
Solve :
4
x
2
a
2
−
b
4
= 0
(i)
3
b
2
2
a
,
0
(ii)
b
2
2
a
,
−
b
2
2
a
(iii)
b
2
4
a
,
−
b
2
3
a
(iv)
−
b
2
2
a
,
−
b
2
a
(v)
b
2
a
,
−
b
2
a
Question
14
14.
Solve :
15
x
2
b
4
−
2
a
x
b
2
−
8
a
2
= 0
(i)
4
a
7
b
2
,
−
a
2
b
2
(ii)
2
a
5
b
2
,
−
a
b
2
(iii)
4
a
3
b
2
,
−
a
b
2
(iv)
4
a
5
b
2
,
−
2
a
3
b
2
(v)
6
a
5
b
2
,
−
a
3
b
2
Question
15
15.
Solve :
16
x
2
−
12
x
+
12
x
b
−
9
b
= 0
(i)
1
,
−
3
b
2
(ii)
1
2
,
−
5
b
4
(iii)
1
,
−
b
4
(iv)
6
8
,
−
3
b
4
(v)
3
5
,
−
b
2
Question
16
16.
Solve :
48
x
2
b
+
18
x
b
−
40
x
−
15
= 0
(i)
−
1
2
,
5
4
b
(ii)
−
3
10
,
5
8
b
(iii)
−
1
8
,
7
6
b
(iv)
−
5
8
,
1
2
b
(v)
−
3
8
,
5
6
b
Question
17
17.
Solve :
12
x
2
−
10
a
x
−
6
x
+
5
a
= 0
(i)
5
a
8
,
1
4
(ii)
5
a
4
,
1
(iii)
a
2
,
−
1
2
(iv)
5
a
6
,
1
2
(v)
7
a
6
,
3
2
Question
18
18.
Solve :
28
x
2
+
20
x
+
7
x
b
+
5
b
= 0
(i)
−
3
7
,
0
(ii)
−
1
,
−
b
2
(iii)
−
1
,
−
b
3
(iv)
−
5
7
,
−
b
4
(v)
−
5
9
,
−
b
5
Question
19
19.
Solve :
12
x
2
a
+
6
x
+
2
x
a
+
1
= 0
(i)
−
1
2
a
,
−
1
6
(ii)
−
1
a
,
−
1
2
(iii)
0
,
1
6
(iv)
−
1
a
,
−
1
4
(v)
−
1
3
a
,
−
1
8
Question
20
20.
Solve :
6
x
2
b
+
4
x
b
−
3
x
−
2
= 0
(i)
−
2
,
1
b
(ii)
−
4
3
,
−
1
2
b
(iii)
−
2
3
,
1
2
b
(iv)
−
2
5
,
1
4
b
(v)
0
,
3
2
b
Assignment Key
1) (i)
2) (i)
3) (iii)
4) (iii)
5) (ii)
6) (iii)
7) (iv)
8) (i)
9) (iv)
10) (iv)
11) (i)
12) (ii)
13) (ii)
14) (iv)
15) (iv)
16) (v)
17) (iv)
18) (iv)
19) (i)
20) (iii)
