люди добрые и неочень!!)хелп!!!!!!!!!!!!!!!!!!!!!!!!

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

$\frac{2x-3}{x}+x<0|*x\neq0$

$\frac{x^{2}+2x-3}{x}<0$

$\frac{(x-1)(x+3)}{x}<0$

_ + - +

______________-3_____________0_______________1____________________

$(-\infty;-3)\cup(0;1)$

(2x-5)(x+7)(x+1)>0

2(x-2,5)(x+7)(x+1)>0

- + - +

_______ -7______________ -1_____________ 2,5____________________

$(-7;-1)\cup(2,5;+\infty)$

$(\sqrt{6}-2,5)(7-6x)(2\sqrt{7}-5)<0$

$\sqrt{6}-2,5<0$ ,т.к. $2,5^{2}=6,25$

$\sqrt{7}-5<0$ , т.к. $5^{2}=25$

7-6x=6(7/6 -x)<0</p>

+ -

------------ 7/6---------------

-*+*-=+ -*-*-=-

$(7/6;+\infty)$