A(a,a) apartine Gf => f(a)=a
[tex]2 - {a}^{2} = a[/tex]
[tex] - {a}^{2} - a + 2 = 0[/tex]
delta=
[tex] {b}^{2} - 4ac = 1 - 4 \times ( - 1) \times 2 = 9[/tex]
deci x1,2=
[tex] \frac{ - b + - radical \: din \: delta}{2a} = \frac{1 + - 3}{ - 2} [/tex]
x1= 1+3/-2=-2
x2= 1-3/-2=1
