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misal akar 3 = a
akar 2 = b
[ (a+b) per (a-b) ] dikali [ (a+b)per(a+b) ]
= [ a2 + 2ab + b ] per [a2 - b2]
= [ (akar 3)^2 + 2 (akar 3)(akar 2) + (akar 2)^2 ] per [(akar 3)^2 - (akar 2)^2 ]
= [ 3 + 2 akar 6 + 2 ] per [ 3 - 2]
= [ 5 + 2 akar 6] per 1
= 5 + 2 akar 6
2).
3).