Odpowiedź:
5a3-4a2-9-________=3a2+4
5a3-4a2-9-(3a2+4)=5a3-4a2-9-3a2-4= 5a3-7a2-13
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Odpowiedź:
5a3-4a2-9-________=3a2+4
5a3-4a2-9-(3a2+4)=5a3-4a2-9-3a2-4= 5a3-7a2-13