October 2018 1 54 Report

Zad 3. Oblicz wartości liczbowe wyrażeń : a) x2 - x dla x = 7 b) a2 - 3a + 1 dla a = -4 c) 1 + x ( x + 4 ) dla x = -11 d) x - 2y dla x = 1 i y = -1 e) 2x2 - y ( x + 1 ) dla x = -2 i y = 5


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