{(x+8)(x-1)-x(x+5)<7;<br>{x+1/6 -6<6; /·6<br>{(x+8)(x-1)-x(x+5)<7; {x<7,5; x∈(-∞;-6)<br>{x+6-6x<36; {x<-6.<br>_________________
(x+8)(x-1)-x(x+5)<7; x+6-6x<36;<br>x²-x+8x-8-x²-5x<7; x-6x<36-6;<br>-x+8x-5x<7+8; -5x<30; /·(-1)<br>2x<15; 5x<-30;<br>x<7,5. x<-6.