Jawabanmu

2014-08-09T20:40:33+07:00
(3+✓6 )2 + (3 -✓6 )2 - 6 (3+✓6)(3-✓ 6) =(9+6)+ (9 -6)-6 (9-3✓6+3✓6-✓36) =15+3-6(9-6)= 18 - 54+36 =18 -18 =0