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Property 5

if x=3 and ...

Question

if $x = 3$ and $y = 4$ find the value of ${log}_{5} 3 x + 4 y$

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Solution

${log}_{5} 3 x + 4 y = {log}_{5} 3 (3) + 4 (4)$

$= {log}_{2} 5$

$= {log}_{5} 5^{2} = 2 {log}_{5} 5 = 2$

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