Question

даю 25 баллов!! Помогите прошу

Answer 1

$\left\{\begin{array}{l}-x>x-2(5x+1)\\20-x\geq (1+9x)^2-81x^2\end{array}\right\ \ \left\{\begin{array}{l}-x>x-10x-2\\20-x\geq 1+18x+81x^2-81x^2\end{array}\right\\\\\\\left\{\begin{array}{l}-x-x+10x>-2\\20-1\geq 18x+x\end{array}\right\ \ \ \left\{\begin{array}{l}8x>-2\\19x\leq 19\end{array}\right\ \ \left\{\begin{array}{l}x>-\dfrac{1}{4}\\x\leq 1\end{array}\right\ \ \ \boxed{\ x\in (-0,25\, ;\m 1\ ]\ }$

Целые решения системы:  х=0 , х=1 .