September 2018 2 40 Report

zad 4

a)(1 - 5/7)razy 0,49

zad 9

e) ( 2 do drugiej potęgi - 3,6)razy1/4

g)3 do potęgi trzeciej :[2,25 - (1/2)do potęgi drugiej]

zad 10

x=(3 i 1/3+2,5)razy0,2 y=1,5 - 3/4razy 1,2 olicz wartości wyrazenia.

a)2x+y= b)3/5x-0,4y=


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