2.7-bo'lim : Kvadrat tenglamalar: Xulosa

1-7-masalalar uchun tenglamaning ildizlari turini aniqlash uchun diskriminantdan foydalaning. Hech qanday ildiz topmang.

1. \(25{x^2} - 120x + 619 = 0\)
2. \(104{x^2} - 75x - 14 = 0\)
3. \(2{x^2} + 60x + 450 = 0\)
4. \(\displaystyle \frac{1}{6}{x^2} - 43 = 0\)
5. \(97 + 136x + 289{x^2} = 0\)
6. \(10{x^2} - 7x = 0\)
7. \(\displaystyle \frac{{49}}{9}{x^2} + \frac{{14}}{{15}}x + \frac{1}{{25}} = 0\)