Question

√$20x^{2}$-√17x+√26 =5x-4

Answer 1

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