September 2018 1 21 Report

28/44 ( matematyka z plusem klasa III gim. )

* zapisz w postaci jak najprostszej sumy algebraicznej.

a) (x+3)(x-7)

b) -3(2x-1)(x+6)

c) -(y-1)(2y+4)

d) 2a²-(a+6)(2a-1)

e) 3(x²-1)-(x-3)(x+2)

Baardzoo proosze o POMOC ! ; )


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