Răspuns:
a)
[tex] \frac{1}{4}x { }^{2} - x + 1 [/tex]
b)
[tex]x {}^{2} - x + \frac{1}{4} [/tex]
c)
[tex] \frac{25}{4} x {}^{2} - 5x + 1[/tex]
d)
[tex] \frac{4}{49} x {}^{2} - \frac{4}{7} x + 1[/tex]
e)
[tex]x {}^{2} - 7x + \frac{49}{4} [/tex]
f)
[tex]x {}^{2} - \frac{2}{3} x + \frac{1}{9} [/tex]
Sper că te-am ajutat!