October 2018 1 15 Report

Oblicz wartości liczbowe wyrażeń: a) 3x-2y dla x= -3, y= -4 b) -3a2+3a+1 dla a= -1/2 c) 2x2- y+x2 dla x=-2, y= -1/4 d) -x3-y2-5z+10 dla x= -2, y= -1/5, z= -2/5 e) (x+2/x)*(-2/x-x2) dla x= 1 Proszę o pomoc!


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