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Byju's Answer
Standard XII
Mathematics
Inequalities Involving Modulus Function
1x-3-1x+5=16,...
Question
1
(
x
-
3
)
-
1
(
x
+
5
)
=
1
6
,
(
x
≠
3
,
-
5
)
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Solution
Given
:
1
(
x
−
3
)
−
1
(
x
+
5
)
=
1
6
⇒
(
x
+
5
)
−
(
x
−
3
)
(
x
−
3
)
(
x
+
5
)
=
1
6
⇒
8
(
x
2
−
2
x
−
15
)
=
1
6
⇒
(
x
2
−
2
x
−
15
)
=
48
[
On
cross multiplying
]
⇒
x
2
−
2
x
−
63
=
0
⇒
x
2
−
(
9
x
−
7
x
)
−
63
=
0
⇒
x
2
−
9
x
+
7
x
−
63
=
0
⇒
x
(
x
−
9
)
+
7
(
x
−
9
)
=
0
⇒
(
x
+
7
)
(
x
−
9
)
=
0
⇒
x
+
7
=
0
or
x
−
9
=
0
⇒
x
=
−
7
or
x
=
9
H
ence, the roots of the equation are
−
7 and 9
.
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0
Similar questions
Q.
Solve for x:
(i)
x
-
1
x
-
2
+
x
-
3
x
-
4
=
3
1
3
;
x
≠
2
,
4
(ii)
1
x
-
1
x
-
2
=
3
,
x
≠
0
,
2
(iii)
x
+
1
x
=
3
,
x
≠
0
(iv)
16
x
-
1
=
15
x
+
1
,
x
≠
0
,
-
1
(v)
1
x
-
3
-
1
x
+
5
=
1
6
,
x
≠
3
,
-
5