Section 2.7 : Quadratic Equations : A Summary
For problems 1 – 7 use the discriminant to determine the type of roots for the equation. Do not find any roots.
- \(25{x^2} - 120x + 619 = 0\)
- \(104{x^2} - 75x - 14 = 0\)
- \(2{x^2} + 60x + 450 = 0\)
- \(\displaystyle \frac{1}{6}{x^2} - 43 = 0\)
- \(97 + 136x + 289{x^2} = 0\)
- \(10{x^2} - 7x = 0\)
- \(\displaystyle \frac{{49}}{9}{x^2} + \frac{{14}}{{15}}x + \frac{1}{{25}} = 0\)