Jawabanmu

2014-09-10T16:30:13+07:00
5√80 + 3√96 - √180 +2√54
= 5√16.5 + 3√16.6 - √36.5 + 2√9.6
= 5.4√5 + 3.4√6 - 6√5 + 2.3√6
= 20√5 + 12√6 - 6√5 + 6√6
= 14√5 + 18√6