Odpowiedź:
a) x=-1
[tex] \frac{2 \times {( - 1)}^{2} - 4 \times ( - 1)}{2} - 2 = \frac{2 \times 1 + 4}{2} - 2 = \frac{2 + 4}{2} - 2 = \frac{6}{2} - 2 = 3 - 2 = 1[/tex]
b) x=0
[tex] \frac{2 \times {0}^{2} - 4 \times 0}{2} - 2 = \frac{0}{2} - 2 = 0 - 2 = - 2[/tex]
c) x=1
[tex] \frac{2 \times {1}^{2} - 4 \times 1}{2} - 2 = \frac{2 \times 1 - 4}{2} - 2 = \frac{2 - 4}{2} - 2 = \frac{ - 2}{2} - 2 = - 1 - 2 = - 3[/tex]
Liczę na naj :)
