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akar 5- akar 2 PER akar 5+akar 2 dikali akar 5-akar 2 PER akar 5 - akar 2
= 7 - dua akar 10 PER (5-2)
= 1/3 (7-2akar10)
=
=
=
=1 -
moga membantu ^_^