Question

Уравнение логарифма помогите решить) 2^log4(5x+8)=2

Answer 1

$2^{log_{4}(5x+8)}=2\2^{log_{4}(5x+8)}=2^1\log_{4}(5x+8)=1\\ left { {{5x+8=4} atop {5x+8>0}} right. \\ left { {{5x=-4|:5} atop {5x>-8|:5}} right. \\ left { {{x=-0,8} atop {x>-1,6}} right. \\x=-0,8$