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The treducible factorisation of 3a ^(3) ...

The treducible factorisation of `3a ^(3) + 6a ` is

A

`3a (a ^(2) + 2)`

B

`3 (a ^(2) + 2)`

C

`a (3a ^(2) + 6) `

D

`3 xx a xx a xx a + 2 xx 3 xx a `

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The correct Answer is:
A
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