November 2018 1 14 Report

Oblicz równanie :

1. 2 (a2 - 3a ) - a (a-3) - [ -3(a2 + 2) + 5a) =

2. x-x (y+5) - 6 * [ y - (x-y) ] - 2 (x-6y) =

Z góry dziękuję ! :D


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