simplify √2(√6-√8)+√3(√27-√6)
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√2 (√6 - √8) + √3(√27 - √6)
= √2(√2×√3 - 2√2) + √3(3√3 - √2×√3)
= 2√3 - 2×2 + 3×3 - 3√2
= 2√3 - 4 + 9 - 3√2
= 5 + 2√3 - 3√2
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