Question

матан плиз скорее.........

Answer 1

$sqrt[3]{125} -sqrt[4]{81}=5-3=2\\sqrt[3]{9}cdot sqrt[3]{24} =sqrt[3]{9cdot 24} =6\\sqrt[4]{25^2}=sqrt{25}=5\\sqrt[4]{80} =sqrt[4]{2^4cdot 5}=2sqrt[4]5\\ sqrt[4]{625} -sqrt[5]{32} cdot sqrt[3]{216} =5-2cdot 3=-1\\(sqrt{5} +3)^2=14+6sqrt5$