3x²-18х+15=0
x = 1 и -5
a) x² + 4x - 12 = 0
x = 2, -6
б) x² + 7x + 10 = 0
x = -2 и -5
в) x² - 10x + 25 = 0
x = 5
г) x² - 3x + 5 = 0
x ≠
б?
3x²-18х+15=0
x = 1 и -5
a) x² + 4x - 12 = 0
x = 2, -6
б) x² + 7x + 10 = 0
x = -2 и -5
в) x² - 10x + 25 = 0
x = 5
г) x² - 3x + 5 = 0
x ≠
б?