Question

cum se face??dau coroana

Answer 1

x²-3x+m=0
x1=1=>1²-3•1+m=0
=>1-3+m=0
=>m=2
a=1
b=-3
c=2
discriminanta=b²-4ac= 9-4•1•2=9-8=1
x1,2=-b+-√discriminanta /2=3+-1 /2
x1=3-1/2=2/2=1
x2=3+1/2=4/2=2