Answer :

devishri1977

Answer:

Step-by-step explanation:

Factorize 54

54 = 2 * 3 * 3 * 3

√54 = √2*3*3*3 = 3* √2*3 = 3√6

[tex]2\sqrt{6}-4\sqrt{54}=2\sqrt{6}-4*3\sqrt{6}\\\\\\[/tex]

                   [tex]=2\sqrt{6}-12\sqrt{6}\\\\\\=(2-12)\sqrt{6}\\\\\\= - 10\sqrt{6}[/tex]

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