2^2х+1-5*2^х-88=0
2^х(2^2х+1-5*2^х)-88=0
2^х 2^х
2^х(2^2х+1-х - 5*1)-88=0
2^х(2^х+1 -5)-88=0
2^х * 2^х * 2^1 - 5 - 88=0
4^х * 2 - 5 - 88=0
4^х *2 - 93=0
4^х=93 * 2
4^х=186
х=log 186
4
