August 2018 1 26 Report
Jest to dział z Kwadratu różnicy!!!
Zapisz wyrażenie w najprostrzej postaci:
a)(x-1)²-(x-2)²+3=
b)1/2(4x-2)²+4(0,5x-√2)²+4x(2+√2)=
c)(x-3)(x-3)-(x-1)(x-1)+4(x-2)=
d)-[1-(x-y)²]-[(y-x)²-1]=

odpowiedzi są tylko do c) i d)
c)=0
i
d)=0
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