zapisz w postaci wyrażenia algebraicznego pole ponższej figury.
doprować je do najprostrzej postaci
7(3m-4) + (m+2)(2m+3) = 21m - 28 + 2m² + 3m + 4m + 6 = 2m² + 28m - 22
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7(3m-4) + (m+2)(2m+3) = 21m - 28 + 2m² + 3m + 4m + 6 = 2m² + 28m - 22