Jawabanmu

2014-02-09T21:54:21+07:00
4√20 = 4√(5 x 4)
        = 8√5
1 5 1
2014-02-09T21:56:17+07:00
4√10 x √2  = 4√(2 x 10) = 4√(2 x 2 x 5) = 4 x 2√5  = 8√5
1 5 1