mohon bantu 5 soal secepatnya

1. 12√6 - 7√6 + 3√6 = (12 - 7 + 3)√6 = 8√6
2. 6√5 + √5 - 20√5 = (6 + 1 - 20)√5 = -13√5
3. √80 + √180 = √(16 x 5) + √(36 x 5) = 4√5 + 6√5 = (4 + 6)√5 = 10√5
4. √12 + √27 + √75 = √(4x3) + √(9x3) + √(25x3) = 2√3 + 3√3 + 5√3 = (2 + 3 + 5)√3 = 10√3
5. √320 + √500 + √20 = √(64 x 5) + √(100x5) + √(4x5) = 8√5 + 10√5 + 2√5 = (8 + 10 + 2)√5 = 20√5