Question

8класс алгебра. Номер 7.8
$0.25x {}^{2} - x + 1 = 0$
помогите пжж​

Answer 1

$\displaystyle\bf\\0,25x^{2} -x+1=0 \ |\cdot 4\\\\x^{2} -4x+4=0\\\\(x-2)^{2} =0\\\\x-2=0\\\\x=2\\\\Otvet \ : \ 2$