September 2018 3 10 Report

Zadanie 1
Oblicz korzystając ze wzorów:


(4a-2)(4a+2)=

3(2a+1)(2a-1)=



Wzory:
(a+b)² = a² + 2ab + b²
(a-b)² = a² - 2ab + b²
a²-b² = (a - b) * (a + b)


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