Verified Answer :

PhantomSnipers23

Probably, the W can only be affected another like term
So, It will be 2(W·W)
 so the answer will be;
            2W²

TSO

\(2w \cdot w = 2ww = \boxed{\bf{2w^2}}\\\\\\\boxed{\bf{B)~2w^2}}}\)

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