[tex]E(x) = \frac{ {x}^{2} }{x - 3} [/tex]
[tex]a)E(0) = \frac{ {0}^{2} }{0 - 3} = \frac{0}{ - 3} = 0[/tex]
[tex]b)E( - 4) = \frac{ {( - 4)}^{2} }{ - 4 - 3} = \frac{16}{ - 7} = - \frac{16}{7} [/tex]
[tex]c)E(6) = \frac{ {6}^{2} }{6 - 3} = \frac{36}{3} = 12[/tex]
[tex]d)E(3) = \frac{ {3}^{2} }{3 - 3} = \frac{9}{0} \: \: nu \: se \: poate[/tex]