Question

Determina valoarea minima a expresiei 16 x la puterea 2 +8x + 4 precizati ce valoare a lui x..,se realizeaza

Answer 1

pai .. imparti totu prin 4
4x²+2x+1=0
delta=4-16
       =-8
daca ecuatia e in R nu are soluti
daca e in C
x1,2=(-2+-√-8)/2
x1=(-2+2i√2)/2=-1+i√2
x2=-(2+2√2)/2=-1+i√2