1)logx/log(2) - 2(log(x)/log(2)) < 4(log(0,75)/log(3)) 2)125*3^(2x-7) - 27*5^(2x-7) > 0 3)4*9^x - 7*12^x + 3*16^x

1) 125^3^(2x-7)>27*5^(2x-7)(3/5)^(2x-7)>27/1252x-7<32x<10x<5x∈(-∞;5).2) 4*3^2x-7*3^x*4^x+3*4^2x>0/4^2x4*(3/4)^2x-7*(3/4)^x+3>0(3/4)^x=a4a²-7a+3>0D=49-48=1a1=(7-1)/8=3/4a2=(7+1)/8=1a<3/4⇒(3/4)^x<3/4⇒x>1a>1⇒(3/4)^x>1⇒x<0x∈(-∞;0) U (1;∞).