Jawabanmu

2014-08-17T23:01:09+07:00
(√5-√3)^2+(√5+√3)^2-2(√5-√3)(√5+√3)=(√5-√3-√5-√3)^2=(-2√3)^2=12
(√5-√3)^2+(√5+√3)^2-10 = (√5-√3)(√5-√3)+(√5+√3)(√5+√3) = 5-2√15+3+5+2√15+3 = 16-10 (5-3) = -4