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Byju's Answer
Standard VIII
Mathematics
Cube Root Using Prime Factorisation
Fill in the b...
Question
Fill in the blanks:
ii)
3
√
8
×
.
.
.
.
=
8
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Solution
Step: Fill in the blank
Given:
3
√
8
×
.
.
.
.
=
8
Let, the required number be
x
.
∴
3
√
8
×
x
=
8
⇒
3
√
8
×
3
√
x
=
8
∵
3
√
a
×
b
=
3
√
a
×
3
√
b
⇒
3
√
2
×
2
×
2
×
3
√
x
=
8
⇒
2
×
3
√
x
=
8
⇒
3
√
x
=
4
∴
x
=
4
3
=
64
(Taking cube on both the side)
Hence, the correct answer is
64
.
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3
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Cube Root Using Prime Factorisation
Standard VIII Mathematics
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