Respuesta:
[tex]\frac{49}{9}[/tex][tex]b^{2}[/tex] - [tex]\frac{28}{9}[/tex]ab+ [tex]\frac{4}{9}[/tex][tex]a^{2}[/tex]
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Respuesta:
[tex]\frac{49}{9}[/tex][tex]b^{2}[/tex] - [tex]\frac{28}{9}[/tex]ab+ [tex]\frac{4}{9}[/tex][tex]a^{2}[/tex]