December 2018 1 20 Report
Zapisz w postaci sumy algebraicznej

a) (4 -  \sqrt{5} ) (  \sqrt{6} +  \sqrt{5} ) - ( \sqrt{5} - 2)( 2 +  \sqrt{5} )

b) (2 \sqrt{5} -  \sqrt{10} )^2 - (2 \sqrt{5} + 1)(1 - 2 \sqrt{5} )

Prosze o obliczenia :)

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