Answer
$10(\log_{2}x+\log_{2}y)=10\log_{2}x+10\log_{2}y$
Work Step by Step
$\log_{2}(xy)^{10}=10\log_{2}(xy)=10(\log_{2}x+\log_{2}y)=10\log_{2}x+10\log_{2}y$
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