Question

Qual o polinômio cuja as raízes são 5, -3 e 2

Answer 1

(X-r')(x-r")(x-r'") => (x-5)(x+3)(x-2) => (x*x+x*3-5*x-5*3)(x-2) => (x^2-2x-15)(x-2) => x^(2)*x -2*x^(2) -2x*x-2x*-2 -15*x-15*-2 => x^3 -2x^2 -2x^2 +4x -15x + 30 => x^3 -4x^2 -11x + 30