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(2√2 -3√3)² + 2(√3+3√2)² -(5√2-1)(5√2+1) . Multumesc!

Răspuns :

8 - 12√6 +27 +2( 3+ 6√6 +18) -(50 -1)=

= 35 -12√6 + 6 +12√6 +36 -49=

= 77-49=  28