√45 = √(9*5) = 3√5
√98 = √(49*2) = 7√2
√20 = √(4*5) = 2√5
√450 = √(225*2) = 15√2
4√18 = 4√(9*2) = 12√2
1/3√54 = (1/3)√(9*6) = 3√6
1,5√32 = 1,5√(16*2) = 4√2
√45 = √(9*5) = 3√5
√98 = √(49*2) = 7√2
√20 = √(4*5) = 2√5
√450 = √(225*2) = 15√2
4√18 = 4√(9*2) = 12√2
1/3√54 = (1/3)√(9*6) = 3√6
1,5√32 = 1,5√(16*2) = 4√2