Respuesta:
(m+3)²+(m-3)²
[tex]=m^2+6m+9+\left(m-3\right)^2\\\\=m^2+6m+9+m^2-6m+9\\\\=2m^2+18[/tex]
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Respuesta:
(m+3)²+(m-3)²
[tex]=m^2+6m+9+\left(m-3\right)^2\\\\=m^2+6m+9+m^2-6m+9\\\\=2m^2+18[/tex]