Question

rezolvati inecuatia
x²-2x-3>0

Answer 1

x²-2x-3>0
x²-2x-3=0
delta=b²-4ac=4-4(-3)=4+12=16
X1=-b-radical din delta/2a= -2-4/2=-6/2=-3
X2=-b+radical din delta/2a=-2+4/2=2/2=1
Soluții ={-3,1}