AJUTOOOOOOORRRRRRRRRR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Răspuns:
Explicație pas cu pas:
f(x)=x²+6mx+m²-9
f(1)=8 8=1+6m+m²-9 m²+6m-16=0
m1,2=-3±√9+16=-3±5 m1=2 si m2=-8
f'(x)=2x+6m 2x+6m=0 2x=-6m x=-3m Varful parabolei trebuie sa fie negativ m>0 Soutia convenabila este m=2