September 2018 1 20 Report

Usuń nawiasy i zredukuj wyrazy podobne:

a) -[-(-8x+2)-4xy]+8xy-(10-2x)+6x

b) -3,2x+(-0,8y+2z)-(1,2y-0,8x)-(2z-2,4x)

c)2ab(2)-(4a(2)b-3b(2)a)-[-(-12ba(2)+3a(2)b(2))]+16a(2)b

d)-1,2xy-8y(2)-(-5yx+10jedna druga y(2)-8,3)-(-2,3+3,8xy)

legenda

(2) to znaczy do kwadratu ;]


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