Lupul7428ask
a fost răspuns

(2 radical3 -radical5)^2 + x(3radical2-7)(3radical2+7)+radical240=-14

Răspuns :

EVERGREENask

Răspuns:

Salut

(2√3-√5)²+x(3√2-7)(3√2+7)+√240=-14

12-4√15+5+x(9•2-49)+4√15=-14

12-4√15+5+x(18-49)+4√15=-14

12-4√15+5+x(-31)+4√15=-14

12-4√15+5+31x+4√15=-14

17-31x=-14

-31x=-14-7

-31x=-31

x=1.

==evergreen==

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