Cubic Remainder
1. Stating the problem: We want to find the remainder when the cubic polynomial $$f(x) = 2x^3 - x^2 + 2x - 16$$ is divided by $$x + 5$$.
2. According to the Remainder Theorem, the remainder of dividing $$f(x)$$ by $$x - a$$ is $$f(a)$$. Here, we have $$x + 5 = x - (-5)$$, so $$a = -5$$.
3. Evaluate $$f(-5)$$:
$$f(-5) = 2(-5)^3 - (-5)^2 + 2(-5) - 16$$
$$= 2(-125) - 25 - 10 - 16$$
$$= -250 - 25 - 10 - 16$$
$$= -301$$.
4. Therefore, the remainder when $$f(x)$$ is divided by $$x + 5$$ is $$-301$$.