Tolong dijawab pke cara yaa

8).3√2 ×√75 ÷√54
=3√2 × 5√3 : 3√6
=15√6 : 3√6
=5

9).6√8-4√32+√128
= 6√4.2 - 4√16.2 + √64.2
=6.2 √2 - 4.4√2 + 8√2
=12√2 - 16√2 + 8√2
=4√2

10).2√18 + √32 -4√8
=2√9.2 + √16.2 - 4√4.2
=2.3√2 + 4√2 -4.2√2
=6√2 +4√2 -8√2
=2√2

11). 5√20 +√80 -2√45
=5√4.5 + √16.5 -2√9.5
=5.2√5 + 4√5 -2.3√5
=10√5 +4√5 -6√5
=8√5

8. 15√6:3√6=5
10.6√2+4√2-8√2=2√2