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IBPS Clerk Mains 2018 Paper
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© examsiri.com
Question :
67 of 190
Marks:
+1
,
-0
I
.
8
x
2
+
58
x
+
39
=
0
I
I
.
y
2
–
35
y
+
216
=
0
if x < y
if x
<
y
if x > y
if x
>
y
if x = y or the relationship cannot be established
Validate
Solution:
(a)
I
.
8
x
2
+
58
x
+
39
=
0
⇒
8
x
2
+
6
x
+
52
x
+
39
=
0
⇒
(
2
x
+
13
)
(
4
x
+
3
)
=
0
⇒
x
=
–
3
4
,
–
13
2
I
I
.
y
2
–
35
y
+
216
=
0
⇒
y
²
–
27
y
–
8
y
+
216
=
0
⇒
(
y
–
27
)
(
y
–
8
)
=
0
⇒
y
=
27
,
8
y
>
x
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