0; (x+1)^2+1>0;" alt="x^2+2x+2>0; (x+1)^2+1>0;" align="absmiddle" class="latex-formula"> - справедливо для любого действительного х
1;\\\\x^2+2x+2<10;\\\\\x^2+2x-8<0;\\\\(x+4)(x-2)<0;\\\\(-4;2)" alt="lg (x^2+2x+2)<1;\\\\lg (x^2+2x+2)<lg 10;\\\\10>1;\\\\x^2+2x+2<10;\\\\\x^2+2x-8<0;\\\\(x+4)(x-2)<0;\\\\(-4;2)" align="absmiddle" class="latex-formula">
овтет: (-4;2)