wzorek skrocnego mnozenia
(a-b)^2 = a^2-2ab +b^2
wg. niego:
48 - 20+75 = 48 - 120 +75 = 3
rozw w zał.
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wzorek skrocnego mnozenia
(a-b)^2 = a^2-2ab +b^2
wg. niego:
48 - 20
+75 = 48 - 120 +75 = 3
rozw w zał.