September 2018 1 27 Report

1.Wykonaj działania :

-2,4xy^+(3 i 1/5xy^-2,8x^y)-(4/5xy^+x^y)

2.Doprowadź do najprostszej postaci wyrażenie :

6a(1/3a^-0,5b)-12b(-0,25a+1/3b^)-ab

^- do potęgi drugiej.

Dam najaa ! <3


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