Respuesta:
81+72m+16m²
Explicación paso a paso:
(9+4m)²=(9+4m)*(9+4m)=81+36m+36m+16m²=81+72m+16m²
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Respuesta:
81+72m+16m²
Explicación paso a paso:
(9+4m)²=(9+4m)*(9+4m)=81+36m+36m+16m²=81+72m+16m²