Решите уравнения:
9x²-6-(3x-2)=0
x+(5x+2)²=25(3+x²)
(2x-3)²-2x(4+2x)=13
(4x-5)(5+4x)-2x(8x-1)=0

9x² - 6 - 3x + 2 = 09x² - 3x - 4 = 0D = b² - 4ac = 9 + 144 = 153x1 = ( 3 + √153) / 18x2 = ( 3 - √153) /18x + 25x² + 20x + 4 = 75 + 25x²21x + 25x² - 25x² = 7121x = 71x = 71/21x = 3целых 8/214x² - 12x + 9 - 8x - 4x² = 13- 20x = 13 - 9- 20x = 420x= - 4x = - 0,220x + 16x² - 25 - 20x - 16x² + 2x = 02x = 25x = 12,5