Question

alguem poderia me respoder 2√6-2√24+√54

Answer 1

Olá, Seydillastange!

$2 \sqrt{6-2} . \sqrt{24} + \sqrt{54}$

$2 \sqrt{4} . \sqrt{2^2.2.3} + \sqrt{2.3^2.3} = 2.2.(2 \sqrt{6}) + 3 \sqrt{6} = 4.( 2\sqrt{6} + 3\sqrt{6}) = \boxed{4.5 \sqrt{5}}$