September 2018 2 14 Report

to jest wartość liczbowa - wyrażenia algebraiczne . i trzeba podstawić potem za litery .

1 zadanie . 3 (x-2x+3) -2 ( x " do potęgi drugiej " - 5x -1 )

x = 2

2 zadanie . a ( 2ab+ b ) -b ( a - 2ab + a " do potęgi drugiej " )

a = 0,1

b = - 10


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