Question

(√5-√7)totul la a 2-(√5+1)(√5*1)-2√35

8 inseamna ori :)
va rog urgent :(

Answer 1

[tex]( \sqrt{5}- \sqrt{7})^{2}-( \sqrt{5}+1)(\sqrt{5}-1)-2 \sqrt{35}= \\ 5-2 \sqrt{35}+7-5+1-2 \sqrt{35}=8 [/tex]