Question

Решите пожаалуйстаа....

Answer 1

$x=log _{2} 16\\\ x=log _{2} 2^4\\\ x=4log _{2} 2\\\ x=4$

$x=log _{2}5+log _{2} \frac{8}{5}\\\ x=log _{2}5+log _{2}{8}-log _{2}5\\\ x=log _{2}2^3\\\ x=3log _{2}2\\\ x=3$