Question

Log_^2(5-x)=10 решите пожалуйста.

Answer 1

${2}^{10} = 5 - x$

$1024 = 5 - x$

$x = 5 - 1024$

$x = - 1019$

Answer 2

$log_2(5-x)=10\; \; ,\; \; ODZ:\; 5-x>0\; \; \to \; \; x<5\\\\5-x=2^{10}\\\\x=5-2^{10}\\\\x=5-1024\\\\x=-1019<5\\\\Otvet:\; \; x=-1019\; .$