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Find f(4), where f(x)=3^x If f(x) = 81, what is x? Please answer asap!

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LONEGUYGO

[tex]f(x) =3^x \implies f(4) =3^4=81\\\\\\\text{Since f(x) = 81 = f(4), the value of x is 4.}[/tex]

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