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Byju's Answer
Standard IX
Mathematics
Algebraic Identities
If x-13=8, ...
Question
If
(
x
−
1
)
3
=
8
, what is the valie of
(
x
+
1
)
2
?
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Solution
(
x
−
1
)
3
=
8
∴
(
x
−
1
)
=
√
8
∴
x
−
1
=
2
∴
x
=
2
+
1
=
3
∴
(
x
+
1
)
2
=
(
3
+
1
)
2
∴
(
x
+
1
)
2
=
1
+
∴
Value is
16
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If (x − 1)
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2
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