\frac{2x-3}{x}" alt="-x> \frac{2x-3}{x}" align="absmiddle" class="latex-formula">



_ + - +
______________-3_____________0_______________1____________________

(2x-5)(x+7)(x+1)>0
2(x-2,5)(x+7)(x+1)>0
- + - +
_______ -7______________ -1_____________ 2,5____________________


,т.к. 
, т.к. 
7-6x=6(7/6 -x)<0</p>
+ -
------------ 7/6---------------
-*+*-=+ -*-*-=-
