4 root 5 is equal to July 8, 2019 16 32 64 128 4 under root 5 is equal to 4 √ 5 5 root 5 is equal to 3 root 5 4 root 5 is equal to Root 45 3 root 20 4 root 5 is equal to 4 + 4 =5 √ 5 4 + 4 = 6