Jawabanmu

2014-01-12T22:11:47+07:00
1.√128 =  \sqrt{64.2} = 8 \sqrt{2}
2.√80 =  \sqrt{16.5} = 4 \sqrt{5}
3.√50a pangkat4
=akar 25a^2 x 5a^2 = 5a^2 akar 5
1 3 1