August 2018 2 27 Report
Sprawdź czy równosc jest prawdziwa dla dowolnej liczby x;
a)x(x+2)+1=(x+1)(x+1)
b)(x-1)(1+x)=1-x2
c)(x-2)(x+1)=(x+2)(x-1)-x
d) (x+5)(x+5)=(x-5)(x-5)+20x
Z góry wielkie dzięki;)) Pozdro;D
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