The answer is the option A, which is: A. x-7=x²+2x-4
The explanation is shown below:
To solve this problem you must apply the proccedure shown below:
1. You have the following system equations given in the problem above:
y=x-7
y=x²+2x-4
2. Therefore, when you substitute for y in the bottom equation, you obtain:
x-7=x²+2x-4
