Jawabanmu

2014-04-15T08:49:00+07:00
Jb: (3 akar 5 + 2) (4 akar 5-7) = 60- 21akar5+ 8akar5-14 = 46 - 13 akar 5
2014-04-15T09:54:56+07:00
(3√5.4√5)+(3√5.-7)+(2.4√5)+(2.-7)=60-21√5+8√5-14=46-13√5