Question

Am incercat sa-l fac, si m-am blocat. Ajutor pls.

$x^{2} -5x+6=0$

Answer 1

delta=b^2-4ac
delta=(-5)^2-4*1*6
delta=25-24
delta=1=> radical din delta=1

x1=-b-radical din delta/2a
x1=-(-5)-1/2*1
x1=5-1/2
x1=4/2
x1=2

x2=-b+radical din delta/2a
x2=-(-5)+1/2*1
x2=5+1/2
x2=6/2
x2=3