Question

Решите уравнение даю 34 балов

Answer 1

$-2x^{2}-40x+192=0|:(-2)\\\\x^{2}+20x-96=0\\\\D=20^{2}-4*(-96)=400+384=784=28^{2}\\\\x_{1}=\frac{-20-28}{2}=-24\\\\x_{2}=\frac{-20+28}{2}=4\\\\Otvet:\boxed{-24;4}$