Решите уравнение 1+3x-10x²=0.

1 + 3x - 10x² = 0

10x² - 3x - 1 = 0

x = (3 ± √(9 - 4(10)(-1))) / 20 = (3 ± √49) / 20 = (3 ± 7) / 20. x₁ = 10/20 = 0.5, x₂ = -4/20 = -0.2.