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(4-radical 3)tot la 2

Răspuns :

(4√3)² = 4²•(√3)2 = 16•3 = 48.
Acum am văzut
(4-√3)²= 4²-2•4•√3+(√3)²=
= 16-8√3+3=
=19+8√3
(4-√3)²=4²-2·4·√3+(√3)²=16-8√3+3=19-8√3