Question

Aveti idee cum se face asta? Doar adunarea aia intre radicali, ignorati supra "x-3"-ul.

Answer 1

Formula radicalilor compusi :
$\sqrt{ \frac{a+ \sqrt{a ^{2}-b } }{2} } + \sqrt{ \frac{a- \sqrt{a ^{2}-b } }{2} }$