Question

Calculati ; a² - 5a - 6 = 0 ; Aflati a 1 si a2. MULTUMESC

Answer 1

delta=b^2-4ac
Delta=(-5)^2-4*1*(-6)
delta=25+24
Delta=48

a1=-b- radical delta/2a
a1= -(-5)-7/2
a1=5-7/2
a1=-2/2
a1=-1

a2=-b+ radical delta/2a
a2= -(-5)+7/2
a2=5+7/2
a2=12/2
a2=6