👤

x+1/5x+12 va rog
..................................................


Răspuns :

x+1/5x+12

5x+12 | x+1

5x+12 | 5x+12

5x+12 | 5(x+1)

5x+12 | 5x+5

5x+12 | (5x+12)-(5x+5)

5x+12 | 7

5x+12 | D7

D7 = ±1 ; ±7

5x₁+12 = -1 => x₁ = -13/5

5x₂+12 = 1 => x₂ = -11/5

5x₃+12 = -7 => x₃ = -19/5

5x₄+12 = 7 => x₄ = -1