Odpowiedź:
[tex] \frac{3}{25} {x}^{2} + 7x - 3 = - 0.08 {x}^{2} + 7x + 1 \\ \frac{3}{25} {x}^{2} - 3 = - 0.08 {x}^{2} + 1 \\ 12 {x}^{2} - 300 = - 8 {x}^{2} + 100 \\ 20 {x}^{2} = 400 \\ {x}^{2} = 20 \\ x = 2 \sqrt{5} \: \: lub \: x = - 2 \sqrt{5} [/tex]
