454. (x − 1)(5x + \(\frac{1}{2}\)) = 0.

x − 1 = 0, откуда x = 1.

5x + \(\frac{1}{2}\) = 0, откуда 5x = −\(\frac{1}{2}\) и x = −\(\frac{1}{10}\).

Ответ: x = 1; x = −\(\frac{1}{10}\).