Răspuns:
[tex] \frac{m}{n} = \frac{2}{3} = > \frac{m}{2} = \frac{n}{3} = k [/tex]
Rezulta ca m=2k si n=3k
(n+m)(n-m)=(3k+2k)(3k-2k)=5k×k=5k la patrat=180
Deci k la patrat este 36 rezulta k=6
m=2k=2×6=12
n=3k=3×6=18
