Question

Determine as raízes do polinômio: P(x)= x^3 +x^2 - x -1

Answer 1

x³+x² -x-1

x²(x+1) -1(x+1)

(x+1).(x²-1)

(x+1).(x+1)(x-1)

x'=-1, x"=-1, x'"=1 <=======©