Question

Sa se rezolve ecuatia x²-6.|x|+5=0

Answer 1

Răspuns:

x^2-6x+5=0

delta=b^2-4ac= (-6)^2-4×1×5=36-20=16

√delta =√16=4

x1=-b-delta/2a =6-4/2×1 =2/2=1

x2=-b+delta/2a=6+4/2×1=10/2=5

S={1;5}