2.dereceden denklemler

a+b=1
a.b=-m a=-m/b
-m/b + b=1
b²-m=b m=b²-b
b-b²=a.b=b(1-b)
a=1-b a²=1-2b+b²
2a²=2b²-4b+2
2a²-ab-b²=2b²-4b+2+m-b²
b²-4b+m+2=0
2m+2-3b=0 b=2m+2/3
2b²-2b+2=3b 2b²-5b+2=0
( 2b -1).(b-2) b=1/2 b=2
b=1/2 olamaz cunku a b ye esit degildir
b=2 m=b(b-1)=2.1=2