Question

Given f(x) = x^3 - 2x^2 - x + 2,
the roots of f(x) are

Answer 1

Domain: -∞ < x < ∞

Range: -∞ < f(x) < ∞

Derivative: 3x² - 4x - 1

Roots: x1=-1

x2=1

x3=2