zapoisz w jak najprostrzej postaci
d) -(3c-2)(c-1)-c(c-2)
-3c2 + 3c + 2c - 2 - c2 + 2c = - 4c2 + 7c - 2
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-3c2 + 3c + 2c - 2 - c2 + 2c = - 4c2 + 7c - 2