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4radical27-5radical12+3radical48-2radical75=?

Răspuns :

4√27-5√12+3√48-2√75=
4·3√3-5·2√3+3·4√3-2·5√3=
12√3-10√3+12√3-10√3=(12-10+12-10)√3=0·√3=0
Raspuns: 0