Respuesta :

Answer:

[tex]11\sqrt{2}-5\sqrt{7}[/tex]

Explanation:

[tex]9\sqrt{2} -3\sqrt{7} +\sqrt{8}-\sqrt{28} =11\sqrt{2}-5\sqrt{7}[/tex]

Answer:

11 √2 - 5 √7

Explanation:

I had to study this math in college pls barinliest.

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