September 2018 1 21 Report

co nalezy wpisat w miejsce ?,aby otrzymac trojmian w postaci kwadratu roznicy ? :

49x do kwadratu - 28x + ?

9- 54y + ?

? -40ab + 25b do kwadratu

? - 24cd + 4d do kwadratu

16x do kwadratu - ? + 25y do kwadratu

36y do kwadratu - ? + 49z do kwadratu


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