Final answer:
The next step is to 4) combine like terms onto one side of the equation.
Step-by-step explanation:
The next step in solving the system of equations, y = –x2 – 4x – 3 and y = 2x + 5, algebraically is to combine like terms onto one side of the equation. So, we have -x2 – 4x – 3 - (2x + 5) = 0.