Precalculus Examples

$\log_{2} (x + 21) - \log_{2} (x + 9) = 1 + \log_{2} (x + 3) - \log_{2} (x + 4)$

Step 1

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$\log_{2} (x + 21) - \log_{2} (x + 9) = 1 + \log_{2} (x + 3) - \log_{2} (x + 4)$