Question

exercitiul 2 daca se poate

Answer 1

(3+√2);2;-(1+3√2);2;+(2√3-√5)(2√3+√5)=
(9+2)-(1+9*2)+(2√3-√5)(2√3+√5)=
11-19+(2√3-√5)(2√3+√5)=
-8+(2√3-√5)(2√3+√5)=
-8+2√3*2√3+2√3*(-√5)-√5*2√3-√5*√5=
-8+4√6-2√15-2√15-√25=
-8+4√6-4√15-5=
{mai mult nu stiu, scuze}