September 2018 2 18 Report

zapisz w jak najprostrzej postaci:

a). (a+b)-(2a-b)-(a-2b)

b). (3x-y+1)-(x+y)+(y-x)

c). -(kx+ny)-(3kx+2ny)+(5kx-3ny)

d). (2ab+a+3)-(3ab-a+3)

...to jest z działu ,,wyrażenia algebraiczne,, prosze o pomoc bo tego nie kapuje


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