Hasil dari (3-√5)(3-√5) adalah. ​

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Hasil dari (3-√5)(3-√5) adalah. ​

(3- sqrt{ 5 } )(3- sqrt{ 5 } ) \ = left(3-sqrt{5}right)^{2} \ = 9-6sqrt{5}+left(sqrt{5}right)^{2} \ = 9-6sqrt{5}+5 \ = 14-6sqrt{5}