Anonymní profil peter – Programujte.com

4 * x + 5 / x - 12 / x - 2 <= 1 | -1
4 * x - 7 / x - 3 <= 0 | *x pro x <> 0
4 * x * x - 3 * x - 7 <=0
D = b * b - 4 * a * c = (-3) * (-3) - 4 * 4 * (-7) = 9 + 112 = 121
x12 = (-b +- D^0.5) / (2 * a) = (3 +- 11) / 8
x1 = -1
x2 = 14/8 = 7/4
Mozna opacne znamenka, skola, to bylo davno.

gcx110 - zmenil jsi tam znamenko http://www.wolframalpha.com/input/?…