0,1x2-14= -0,4x плизз

Question

0,1x2-14= -0,4x плизз

Answer 1

Д=0.4^2-4•0.1•(-14)=0.16+5.6=5.76
х1=-0.4+2.4/2•0.1=2/0.2=10
х2=-0.4-2.4/2•0.1=-2.8/0.2=-14