Evaluate the remainder of division of $P(x)$ by $x^2 - 4x$.

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When a polynomial $P(x)$ is divided by $x^2 - 3x$, the quotient and remainder are $Q(x)$ and $2x-8$ respectively. The remainder of division of $Q(x)$ by $x-4$ is $2$. Evaluate the remainder of division of $P(x)$ by $x^2 - 4x$.

From linear division of polynomials, one can conclude that

$$Q(4) = 2$$

I also obtained that

$$P(3) = Q(x)(2x-8)$$

This is where I'm stuck. Could you assist me?

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