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Byju's Answer
Standard VIII
Mathematics
Inter Conversion between Standard and Normal Forms
Mark the corr...
Question
Mark the correct alternative in the following question:
If
x
2
-
4
=
x
3
-
1
,
then
x
=
a
3
b
6
c
18
d
2
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Solution
As
,
x
2
-
4
=
x
3
-
1
⇒
x
2
-
x
3
=
4
-
1
By
transposing
x
3
to
LHS
and
-
4
to
RHS
⇒
3
x
6
-
2
x
6
=
3
⇒
3
x
-
2
x
6
=
3
⇒
x
6
=
3
⇒
x
=
3
×
6
By
transposing
6
to
RHS
∴
x
=
18
Hence, the correct alternative is option (c).
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Standard VIII Mathematics
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