Question

Fie ecuatia  x³-2x+1=0. Stiind ca x₁=1 este solutie a ecuatiei, utilizind polinomul asociat, aflati celelalte solutii reale ale acesteia

Answer 1

prin schema lui  horner,obtii g(x)=x²+x-1
Δ=5
$x_{1}= \frac{-1+ \sqrt{5} }{2}$
si
$x_{2} = \frac{-1- \sqrt{5} }{2}$