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Rezolvati ecuatia: [tex] x^{2} -5 x-24=0 [/tex].Va rog ajutati-ma


Răspuns :

a=1
b=-5
c=-24

Delta=b^2-4ac
delta=(-5)^2-4*1*(-24)
delta=25+96
delta=121
radical din delta=11

x1=-b-radical delta/2a
x1=5-11/2
x1=-6/2
x1=-3

x2=-b+radical din delta/2a
x2=5+11/2
x2=16/2
x2=8