November 2018 1 12 Report

Wykonaj dzialania i oblicz wartosc liczbowa wyrazenia:

a) 2-x(2y-3)+2(-y+4x) dla x=-1 y=-91

b)-2(-3x-y)-3x(1+y) dla x=2 y=1/4

c) -(6-3y)-(x-2y)-2(x+y) dla x=-1 y=-1/3

d) 3(5a+3b)-(10a+10b) dla a=-1/5 b=0,2


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