October 2018 2 19 Report

jeżeli 4a kwadrat -9b kwadrat

kreska ulamkowa---> ------------------------- =9

2a+3b

to:

a. 2a- 3b=9

b. 2a- 3b=4

c. 2a- 3b=3

d. 2a-3b=1

Prosze o wyjasnienie dlaczego wybrana odpowiedz jest prawidlowa


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