Răspuns :
[tex] \frac{ {( - 3)}^{2} - 2}{3 \times ( - 3) + 1} = \frac{9 - 2}{ - 9 + 1} = \frac{7}{ - 8} = - \frac{7}{8}=-0,875 [/tex]
[tex] \frac{x^{2} - 2 }{3x + 1} = \frac{( - 3) ^{2} - 2 }{3 \times ( - 3) + 1} = \frac{9 - 2}{ - 9 + 1} = \frac{7}{ - 8} = - \frac{7}{8} [/tex]