Решите эти 3 неравенства, пожалуйста

25 $x^{2}$ -4(8-5x)<80x-64 25 $x^{2}$ -32+20x<80x-64 25 $x^{2}$ -32+20x-80x+64<0 25 $x^{2}$ +32-60x<0 25 $x^{2}$ -60x+32<0 25 $x^{2}$ -20x-40x+32<0 5x(5x-4)-8(5x-4)<0 (5x-8)(5x-4)<0 $\left \{ {{5x-8\ \textless \ 0} \atop {5x-4\ \textgreater \ 0}} \right.$
$\left \{ {{5x-8\ \textgreater \ 0} \atop {5x-4\ \textless \ 0}} \right.$
$\left \{ {{x\ \textless \ \frac{8}{5} } \atop {x\ \textgreater \ \frac{4}{5} }} \right.$
$\left \{ {{x\ \textgreater \ \frac{8}{5} } \atop {x\ \textless \ \frac{4}{5} }} \right.$
x∈( $\frac{4}{5}$ , $\frac{8}{5}$ )
x∈∅
x∈( $\frac{4}{5}$ , $\frac{8}{5}$ )