August 2018 2 9 Report
Oblicz wartośći liczbowe wyrażeń;
a) x (do potegi 2) - x dla x = 7
b) a (do potegi 2) - 3a + 1 dla a = -4
c) 1 + x (x + 4) dla x = -11
d) x - 2y dla x = 1 i y = -1
e) 2x (do potegi 2) - y (x + 1) dla x = -2 i y = 5
f) (m+1)(n-2) dla m = 2 i n = 1

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