Respuesta :

Answer:

√7² * 7

√7² * √7

7*√7 =18.52026

sqdancefan

Answer:

  [tex]7\sqrt{7}[/tex]

Step-by-step explanation:

Simplest radical form means all squares are removed from under the radical.

[tex]\sqrt{343}=\sqrt{7^3}=\sqrt{7^2}\times\sqrt{7}\\\\=7\sqrt{7}[/tex]

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good job