Respuesta :

Answer:

k<3.5 or k>3.5

Step-by-step explanation:

k²-7k+12.25>0

(k-3.5)²

k²-7k+12.25

k²-2k·3.5+(√12.25)²

(k-3.5)²

k-3.5<0 or k-3.5>0

k-3.5 or k-3.5