January 2019 1 19 Report
Podaj zbior liczb dla ktorych wyrazenia ma sens liczbowy i zapisz to wyrażenie w najprostszej postaci:
a)  \frac{3x+1}{(3x+1)(x ^{2}-49) }
b)  \frac{x   ^{2}+4x+4 }{x ^{2}-4 }
c)  \frac{2}{5+x} (x²-25)
d)  \frac{x ^{3}-8 }{x ^{2}-36 } : \frac{x ^{2}+4 }{x ^{2} +12x+36}
DAJE NAJ

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