2х2+5(1+3)=0 5х2+24х+9=0 -4х2-3х+2=0
2х2+15х+5=0 Д=576-4*5*9=396 Д=9-4(-4)*2=41
х1=-24+6√11:10 х1=3+√41:-8
Д=225-4*2*5=185 х2=-24-6√11:10 х2=3-√41:-8
х1=-15+√185:4
х2=-15-√185:4
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2х2+5(1+3)=0 5х2+24х+9=0 -4х2-3х+2=0
2х2+15х+5=0 Д=576-4*5*9=396 Д=9-4(-4)*2=41
х1=-24+6√11:10 х1=3+√41:-8
Д=225-4*2*5=185 х2=-24-6√11:10 х2=3-√41:-8
х1=-15+√185:4
х2=-15-√185:4