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Rezolvati ecuatiile
a) x²-3x-18=0
b) x²-16x+60=0

Răspuns :

Dariusandrei20
a) Δ=9-4*(-18)=9+72=81
x1=3-9/2=-6/2=-3
x2=3+9/2=12/2=6
b)Δ=256-240=16
x1=16-4/2=12/2=6
x2=16+4/2=20/2=10

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