Chapter 9 - Quadratic Functions and Equations - 9-8 Systems of Linear and Quadratic Equations - Practice and Problem-Solving Exercises - Page 599: 10

The solutions of the system are $(-1,2)$ and $(4,-8)$.

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 $(4,-8)$.