(2x^2-2x+1)/(2x-1) меньше =1 25x^2-3|3-5x| меньше 30x-9

1) [latex] \frac{2x^{2}-2x+1}{2x-1} \leq 1 [/latex] [latex] \frac{2x^{2}-2x+1}{2x-1}- \frac{2x-1}{2x-1} \leq 0[/latex] [latex] \frac{2x^{2}-2x+1-2x+1}{2x-1} \leq 0[/latex] [latex] \frac{2*(x^{2}-2x+1)}{2x-1} \leq 0[/latex] [latex] \frac{2*(x-1)^{2}}{2x-1} \leq 0[/latex] 1.1) [latex]x-1=0[/latex] [latex]x=1[/latex] 1.2) [latex]2x-1\ \textless \ 0[/latex] [latex]x\ \textless \ \frac{1}{2}[/latex] Ответ: x∈(-бесконечность; 0.5)U{1}  2) [latex]25x^2-3*|3-5x|\ \textless \ 30x-9[/latex] 2.1) [latex] \left \{ {{3-5x \geq 0} \atop {25x^2-3*(3-5x)\ \textless \ 30x-9}} \right. [/latex] [latex] \left \{ {x \leq 0.6} \atop {25x^2-9+15x-30x+9\ \textless \ 0}} \right. [/latex] [latex] \left \{ {x \leq 0.6} \atop {25x^2-15x\ \textless \ 0}} \right. [/latex] [latex] \left \{ {x \leq 0.6} \atop {x*(5x-3)\ \textless \ 0}} \right. [/latex] [latex] \left \{ {x \leq 0.6} \atop {0\ \textless \ x\ \textless \ 0.6}} \right. [/latex] Решение: 0