Question

найдите значение выражения
(3sqrt(5)-sqrt(3))^2/(8-sqrt(15))

Answer 1

=(9*5-2*3√5*√3 +3)/(8-√15) =(45-6√15 +3)/(8-√15) =(48-6√15) /(8-√15) =6(8-√15)/(8-√15) =6