2 в степени x+2 + 2 в степени x+5 меньше 9

2^(2x+1)-2^(x+2)-2^x <=3(2^(2x)) *2 - (2^x) *(2^2) -(2^x) -3 <=02*(2^(2x)) -5*(2^x) -3 <=0|t=2^x2t^2-5t-3<=0D=49t1=3, t2=-0,52(t-3)(t+0,5)<=0      +                  -                +----------[-0,5]---------[3]--------                     -0,5<= t <=3             -0,5<= 2^x <=3, но  2^x>0                  0< 2^x <=3                  x<=log_2{3}