помогите 14х^3+7х^2+2х+1=0

Question

помогите 14х^3+7х^2+2х+1=0

Answer 1

14x³ + 7x² + 2x + 1 = 0
7x²(2x + 1) + 2x + 1 = 0
(2x + 1)(7x² + 1) = 0
2x + 1 = 0
x = -0,5