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If f(x)=3x+|x|, then the value of f(3x)+...

If `f(x)=3x+|x|`, then the value of `f(3x)+f(-x)-f(x)` is:

A

`3(x+|x|)^(2)`

B

`3(x+|x|)`

C

`(x-|x|)^(3)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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