Question

Решите неравенство:
2^х-1+2^х+3>17

Answer 1

(2^x)/2+(2^x)×2^3>17
2^x+(2^x)×2^4>34   2^x=t
t+16t>34
17t>34  t>2
2^x>2
X>1
X∈(1;+∞)