September 2018 2 33 Report

zad 1

A. (x+1)(x-2)+(x+2)(x-1) =

B. (5k+n)(k-2n)-k(4k+n) =

C. (4y+3)(y-2)-2y(4-2y) =

D. -(3c-2)(c-1)-c(c-2) =

daje punkty .!

potrzebuje na jutro .!


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