Answer
The solutions of the system are $(-1,2)$ and $(4,-8)$.
Work Step by Step
We are given:
$y=x^2-5x-4$
$y=-2x$
Graph both equations in the same coordinate plane.
The points of intersection are $(-1,2)$ and $(4,-8)$.
Hence, the solutions of the system are $(-1,2)$ and $(4,-8)$.