1.

If\[{{\mathbf{3}}^{\mathbf{8}}}{{^{\mathbf{x}}}^{\mathbf{-}}}^{\mathbf{32}}\mathbf{= }{{\mathbf{4}}^{\mathbf{28}}}^{\mathbf{-7x}}\], then find the value of x.

A.  2         
B.  3
C.  4
D.  6
E.  None of these
Answer» D.  6


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