71ОДЗx²+8x-9>0x1+x2=-8 U x1*x2=-9⇒x1=-9 U x2=1x∈(-∞;-9) U (1;∞)log(11)(x+9)³(x-1)³≤log(11)11^4(x-1)³/(x+9)log(11)(x+9)³(x-1)³-log(11)11^4(x-1)³/(x+9)≤0log(11)[(x+9)³(x-1)³*(x+9)/11^4(x-1)³]≤0log(11)[(x+9)/11^4≤04log(11)(x+9)/11≤0log(11)(x+9)/11≤0(x+9)/11≤1x+9≤11x≤2x∈(-∞;-9) U (1;2]72ОДЗx²+11x+30>0x1+x2=-11 U x1*x2=30⇒x1=-6 U x2=-5x∈(-∞;-6) U (-5;∞)lg[(x+6)^11*(x+5)^11]≤lg[10^12(x+6)^11/(x+5)]lg[(x+6)^11*(x+5)^11]-lg[10^12(x+6)^11/(x+5)]≤0lg[(x+6)^11*(x+5)^11*(x+5)/10^12(x+6)^11]≤0lg[(x+5)/10]^12≤012lg([(x+5)/10]≤0lg([(x+5)/10]≤0(x+5)/10≤1x+5≤10x≤5x∈(-∞;-6)73ОДЗx+5>0⇒x>-5x-1>0⇒x>1x-1≠1⇒x≠2x∈(1;2) U (2;∞)log(3)(x+5)+3/3log(x-1)3≤3log(3)(x+5)+1/log(x-1)3≤3log(3)(x+5)+log(3)(x-1)≤3log(3)(x+5)(x-1)≤3(x+5)(x-1)≤27x²-x+5x-5-27≤0x²+4x-32≤0x1+x2=-4 U x1*x2=-32⇒x1=-8 U x2=4-8≤x≤4x∈(1;2) U (2;4]