√6-√12+√6-√18+√12-√18
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Answer:
2√6-6√2
Step-by-step explanation:
√6-√12+√6-√18+√12-√18
= √6+√6-√12+√12-√18-√18
= 2√6-2√18
= 2√6-2√9×2
= 2√6-2×3√2
= 2√6-6√2
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