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Byju's Answer
Standard X
Mathematics
Nth Term of a GP
If 9x+2=720...
Question
If
9
x
+
2
=
720
+
9
x
, find the value of
(
4
x
)
1
/
x
.
Open in App
Solution
9
x
+
2
=
720
+
9
x
9
x
×
9
2
=
720
+
9
x
9
x
×
9
2
−
9
x
=
720
9
x
(
9
2
−
1
)
=
720
9
x
×
80
=
720
9
x
=
9
1
As the bases are same, equating the powers
∴
x
=
1
Therefore,
(
4
x
)
1
/
x
=
(
4
×
1
)
=
4
Suggest Corrections
9
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