1) $sqrt{9-4 sqrt{5} } + sqrt{14 - 6 sqrt{5} }$
2) $sqrt{11-4 sqrt{7} } + sqrt{16- 6 sqrt{7} }$
помогите срочно

$1)sqrt{9-4sqrt{5}}+sqrt{14-6sqrt{5}}=sqrt{(sqrt{5}-2)^2}+sqrt{2(7-3sqrt{5})}=$
$=sqrt{5}-2+sqrt{9-6sqrt{5}+5}=sqrt{5}-2+sqrt{(3-sqrt{5})^2}=$
$=sqrt{5}-2+3-sqrt{5}=1$

$2)sqrt{11-4sqrt{7}}+sqrt{16-6sqrt{7}}=sqrt{(sqrt{7}-2)^2}+sqrt{2(8-3sqrt{7})}=$
$=sqrt{7}-2+sqrt{(3-sqrt{7})^2}=sqrt{7}-2+3-sqrt{7}=1$