Question

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Answer 1

Ответ:

1) $-16sqrt{6}$.

Объяснение:

1)

$2sqrt{6} -3sqrt{24} -4sqrt{54} = 2sqrt{6} -3 * sqrt{6} *sqrt{4} - 4 * sqrt{9} * sqrt{6} = 2sqrt{6} - 6sqrt{6} -12sqrt{6} = -16sqrt{6}.$