Răspuns:
a)(3√3+7)(7-3√3)-(1-√7)²= 19.2915096
b) (3-2√6)(2√6+3)+(√5+1)²= -4.52786405
c) (2√7-1)²+(6+2√5)(2√5-6)= 4.1699476
d) (1+4√3)²-(2+5√2)(5√2-2)= 16.8564065
Sper ca te-am ajutat coronița?
