Question

Решите уравнение log3(5+2x)=1

Answer 1

$log_3(5+2x)=1; ;; ; ODZ:; ; 5+2x textgreater 0; ,; x textgreater -frac{5}{2}; ,; x textgreater -2,5\\5+2x=3^1\\2x=-2\\x=-1$