3sqrt 5 sqrt 20 1 3 * sqrt 45 July 8, 2019 16 32 64 128 (3sqrt(20) + 7sqrt(15) - sqrt(5)) / (sqrt(5)) 4.8. 1) (sqrt(15) + 3sqrt(5)) ^ 2 - 30sqrt(3) 3) (sqrt(5 - 2sqrt(6)) + sqrt(5 + 2sqrt(6))) ^ 2 3sqrt(5) * 2sqrt(5)
