October 2018 2 20 Report

Uprość wyrażenia algebraiczne :

a) -4(a-b)-(2a+6b)-3(-3a-b)=

b) 3(x-y)-2(-x+4y)=

c) -5(-x-2y)-2(3x-y)+3(x-y)=

Oblicz wartości wyrażenia algebraicznego

a) -3x-2y+7 dla x=4, y= -2

b) 4( 1\4x+2)-6y dla x=-1, y= -1\3


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