Sederhanakan perkalian Akar(√2+√5)(√2-√5)

By Admin ReiPosted on December 4, 2022

Sederhanakan perkalian Akar(√2+√5)(√2-√5)

$( sqrt{2} + sqrt{5} )( sqrt{2} - sqrt{5} )$

$= sqrt{2 times 2} - sqrt{10} + sqrt{10} - sqrt{5 times 5}$

$= 2 + 0 - 5$

$= 2 - 5$

$= - 3$

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