Ответ:
2m²+m+5
Объяснение:
(3m²-m)+(2m-3)-(m²-3)=3m²-m+2m-3-m²+3=2m²+m+5
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Ответ:
2m²+m+5
Объяснение:
(3m²-m)+(2m-3)-(m²-3)=3m²-m+2m-3-m²+3=2m²+m+5