Odpowiedź :
Hej!
[tex]2 {n}^{2} - 3n = 2 \times {( \frac{2}{3}) }^{2} - 3 \times \frac{2}{3} = \\ \\ = 2 \times \frac{4}{9} - 2 = \frac{8}{9} - 2 = - 1 \frac{1}{9} [/tex]
Pozdrawiam! - Julka
Hej!
[tex]2 {n}^{2} - 3n = 2 \times {( \frac{2}{3}) }^{2} - 3 \times \frac{2}{3} = \\ \\ = 2 \times \frac{4}{9} - 2 = \frac{8}{9} - 2 = - 1 \frac{1}{9} [/tex]
Pozdrawiam! - Julka