March 2022 1 7 Report
Wykonaj działanie. Wynik podaj w najprostszej postaci:
a) [tex]\frac{9x^{2}-1 }{x^{2}+x } * \frac{(x+1)^{2} }{(x+1)(3x+1)} \\[/tex]

b) [tex]\frac{(x-3)(x+2)}{x^{2} } : \frac{(x^{2}-9)(x+1) }{(x^{2}+x)(x^{2} +3x) }[/tex]

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