1.

Solve \[{{({{9}^{5}})}^{x}}={{({{9}^{4}})}^{x}}\div {{9}^{2}}\].

A.  \[x=4\]               
B.         \[x=-2\]  
C.  \[x=-3\]              
D.         \[x=2\]
Answer» C.  \[x=-3\]              


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