(4n+6) (5n-1) _ (4n+2) (5n+4)
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to "-" onacza minusa??? Jeśli tak to wychodzi:20nkwadrat + 24n - 6 - 20nkwadrat - 26n - 8 = - 2n - 14
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to "-" onacza minusa??? Jeśli tak to wychodzi:
20nkwadrat + 24n - 6 - 20nkwadrat - 26n - 8 = - 2n - 14