Question

Como resolvo log (x+2) + log (x+3) = log 12?

Answer 1

Olá!


$log \: (x+2) + log \: (x + 3) = log \: 12 \\ \Leftrightarrow \cancel{log} \: (x+2) + \cancel{log} \: (x + 3) = \cancel{log} \: 12 \\ \Leftrightarrow x + 2 + x+ 3 = 12 \\ \Leftrightarrow x + x = 12 -2 -3 \\ \Leftrightarrow 2x = 7 \\ \Leftrightarrow x = \frac{7}{2}$