Question

все го 1 пример $\frac{3p {}^{2} + p - 2}{4 - 9p {}^{2} }$
через дискриминант

Answer 1

Объяснение:

$\frac{3 {p}^{2} + p - 2 }{4 - 9 {p}^{2} } = 0 \\ 3 {p}^{2} + p - 2 = 0 \\ d = {1}^{2} - 4 \times 3 \times ( - 2) = 1 + 24 = 25 \\ x = \frac{ - 1 - \sqrt{25} }{2 \times 3} = \frac{ - 1 - 5}{6} = \frac{ - 6}{6} = - 1 \\ x = \frac{ - 1 + \sqrt{25} }{2 \times 3} = \frac{ - 1 + 5}{6} = \frac{4}{6} = \frac{2}{3}$