Log 1/3 (3x + 4) = log 1/3 (x2 - 4x - 14)

Question

Log 1/3 (3x + 4) = log 1/3 (x2 - 4x - 14)

Answer 1

ОДЗ: х>-4/3,
3х+4=х²-4х-14
-х²+7х+18=0
х²-7х-18=0
D=121
x=(7-11)/2=-2
x=(7+11)/2=9