Odpowiedź:
[tex]\frac{4}{5}a(-a+\frac{5}{4}) + a^{2} -1\\-\frac{4}{5}a^{2} + a + a^{2} - 1\\\frac{1}{5} a^{2} +a -1[/tex]
Liczę na naj:)
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Odpowiedź:
[tex]\frac{4}{5}a(-a+\frac{5}{4}) + a^{2} -1\\-\frac{4}{5}a^{2} + a + a^{2} - 1\\\frac{1}{5} a^{2} +a -1[/tex]
Liczę na naj:)