September 2018 2 10 Report

zredukuj wyrazy podobne

8x+10y-8x+2y-3y=

(4a+2b)-2(b+a)=

3a2(do kwadratu) +4a2-7a2b-6a2=

(a+2)*(a-2)+4a

4a2-(-2a+10a2)

5xy-(x+y)*(x-2y)=


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