September 2018 2 22 Report

a)12% liczby k

b)liczba o 25% więkrza od iloczynu liczby x

zad 2

zapisz w jak najprostrzej postaci:

a)6a kwadrat-3c+2a kwadrat-5c-10a kwadrat+c=

b)2(5x-7y)-(3y-7x)=

c)(5+2x)(3x-2)=

d)2x(4x-1)-(x-2)(x+2)=


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