Question

х(0,25х -3)-(0,5х+1)(0,5х-1)=0​

Answer 1

$x(0,25x-3)-(0,5x+1)(0,5x-1)=0$

$0,25x^{2} -3x-(0,25x^{2} -1)=0$

$0,25x^{2} -3x-0,25x^{2} +1=0$

$-3x=-1$

$x=-1:(-3)$

     $x=\frac{1}{3}$

Ответ:   $\frac{1}{3}$