October 2018 1 28 Report

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- 2 y dla x = 1 i y = -1 e) 2x2 - y (x + 1 ) dla x = -2 i y = 5 f) ( m + 1) (n- 2 ) dla m=2 i n = L


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