√-√17x+√26 =5x-4

Уточнение вопроса

√ $20x^{2}$ -√17x+√26 =5x-4

$20x {}^{2} - 17x + 26 = 25x {}^{2} - 40x + 16 - 5x {}^{2} + 23 x + 10 = 0 5x {}^{2} - 23x - 10 = 0 x1 = 5 x2 = - frac{2}{5}$