Question

Решите неравенство -2x^2+5x-2<0

Answer 1

$-2x^2+5x-2 textless 0, \ 2x^2-5x+2 textgreater 0, \ 2x^2-5x+2=0, \ D=9, \ x_1=0,5, x_2=2, \ 2(x-0,5)(x-2) textgreater 0, \ left [ {{x textless 0,5,} atop {x textgreater 2;}} right. \ xin(-infty;0,5)cup(2;+infty)$