September 2018 2 19 Report

Oblicz wartości liczbowe wyrażeń . :
a ) x - 2y dla x = 1 i y = -1
b ) 2x(do potegi 2) - y (x+1) dla x = - 2 i y = 5
c ) (m+1)(n - 2) dla m = 2 i n = 1

proszę o dobre odpowiedzi!


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