Question

$\sqrt{18 } - \sqrt{8 } - \sqrt{2}$
me ajudem!!​

Answer 1

Simplificando os radicais, temos:

$\sqrt{18}~-~\sqrt{8}~-~\sqrt{2}\\\\\\\sqrt{2~.~3~.~3}~-~\sqrt{2~.~2~.~2}~-~\sqrt{2}\\\\\\\sqrt{2~.~3^2}~-~\sqrt{2~.~2^2}~-~\sqrt{2}\\\\\\3.\sqrt{2}~-~2\sqrt{2}~-~\sqrt{2}\\\\\\3\sqrt{2}~-~3\sqrt{2}\\\\\\\boxed{~0~}$

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