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(2√2-3√3)²+2(√3+3√2)²-12(5√2+1)(5√2-1)


Răspuns :

  (2√2-3√3)² + 2(√3+3√2)² - 12·(5√2+1)(5√2-1)=
=  8-12
√6+27 + 6+12√6+36 - 12·(50 -1)=
= 77 - 12·49 =  - 511