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(√3-√2)²+(√3-√2)·(√3+√2)+(√3+√2)²=

Răspuns :

√3²-2×√3×√2+√2²+√3²-√2²+√3²+2×√3×√2+√2²=
3-2×√6+2+3-2+3+2×√6+2=
7-2×√12