November 2018 1 50 Report

Zredukuj wyrazy podobne: a) 3a+2a-b-5a= b) 3x-4,1-(-4x+5,9)= c) 3xy-2x4y+(-5xy+7x-4y)= d)(x2-2x+4)+(x2+2x-1)= e)(x2-7x+8)-(2x2-6x-8)= f) x2-y+2x2-3y+x2+5y+ x2- to znaczy do kwadratu


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