Obliczenie: CVV3Rl - 1
x =
(-b+saknis(
D))+2
x = (-b+saknis(
D))+2$$x$$ = $$(-b+\sqrt {D})+2$$ 
x = -b+saknis(
D)+2$$x$$ = $$-b+\sqrt {D}+2$$ 
x = 2$$x$$ = $$2$$

x = -b+saknis(
D)+2$$x$$ = $$-b+\sqrt {D}+2$$ 
x = 2$$x$$ = $$2$$

x = -b+saknis(
D)+2$$x$$ = $$-b+\sqrt {D}+2$$ 