Объяснение:
(3√5-√20)√5 = 3√5•√5 – √20•√5 = 15 – 10 = –5
(√3+√2)² = 3 + 2 = 5
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Объяснение:
(3√5-√20)√5 = 3√5•√5 – √20•√5 = 15 – 10 = –5
(√3+√2)² = 3 + 2 = 5