👤

Cum rezolv: (√5-√3) (√5+√3)?:(

Răspuns :

Te folosesti de formula (a-b)(a+b)=[tex] a^{2} - b^{2} [/tex]

In cazul tau: 5-3=2
Aplic formula: a²-b²=(a+b)(a-b)
(√5-√3) (√5+√3)=5-3=2