Réponse:
[tex]a = 4 {x}^{2} - 25x - 5[/tex]
[tex]b = 15 {x}^{2} - 136x - 17[/tex]
[tex]c = \frac{19 {x}^{2} }{24} + \frac{7x}{15} - \frac{1}{4} [/tex]
[tex]d = \frac{5 {x}^{2} + 44 }{4} [/tex]
[tex]e = \frac{ - 3 {x}^{2} }{2} + 18x + \frac{13}{6} [/tex]
[tex]f = - x \sqrt{2} + 2 \sqrt{3} [/tex]