(√2 + √3 - √5) (√2 + √3 + √5) =.... Bantu pake cara ya...makasih..

Radicals.

(√2 + √3 - √5) (√2 + √3 + √5)
= [(√2 + √3) - √5] [(√2 + √3) + √5]
= (√2 + √3)² (√2 + √3)√5 - (√2 + √3)√5 - 5
= (2 + 2√6 + 3) - 5
= 2√6