Задание 288 1 и 2 .................................................

Question

Задание 288
1 и 2
.................................................

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Answer 1

(√2+√8)*2=2+√2х8+8=2+2√16+8=2+8+8=18

(√45-√3)*2=45-2√45х3+3=45-√135+3=42-√135=42-√3х3х3х5=42-3√15