Question

гмьчлвщазазазкжжежкзкх​

Answer 1

$(3+\sqrt{5})^{2}+\sqrt{(\sqrt{5} -7)^{2}} -5(\sqrt{5}+3)=9+6\sqrt{5}+5+|\sqrt{5}-7|-5\sqrt{5}-15=\\=\sqrt{5}-1+7-\sqrt{5}=6\\\\Otvet:\boxed{6}$