The first step in determining the solution to the system of equations, y = - x2 - 4x - 3 and y = 2x + 5, algebraically is to set the

two equations equal as X? - 4x - 3 = 2x + 5. What is the next step?

Set y = 0in y = - x? - 4x - 3.

Factor each side of the equation.

Use substitution to create a one-variable equation.

Combine like terms onto one side of the equation

Question

Mathematics

Serena Moran

6 November, 16:35

The first step in determining the solution to the system of equations, y = - x2 - 4x - 3 and y = 2x + 5, algebraically is to set the

two equations equal as X? - 4x - 3 = 2x + 5. What is the next step?

Set y = 0in y = - x? - 4x - 3.

Factor each side of the equation.

Use substitution to create a one-variable equation.

Combine like terms onto one side of the equation

+3

Answers (1)

Know the Answer?

Nickolas Tanner · Answer 1

Combine like terms onto one side of the equation

Step-by-step explanation:

You have

-x^2 - 4x - 3 = 2x + 5

It seems that we should combine like terms to make this equations smaller.

-x^2 - 4x - 3 - 2x - 5 = 0

-x^2 - 6x - 8 = 0

- (x + 2) (x + 4) = 0

x = - 2 or x = - 4