September 2018 1 19 Report

Cześć daję dużo puktów bo to na jutro...

Jakim wyrażeniem należy zastapić symbol @?

a) x^2-xy+y^[email protected]=(x+y)^2

b)a^2-2ab-b^2=(a-b)^[email protected]

c)(a+b)^2=(a-b)^[email protected]


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