Answer:
B. and C.
Step-by-step explanation:
1. Set the polynomial equal to zero:
x² + 5x + 7 = 0
2. Plug the given values of a, b, and c into the quadratic formula:

3. Solve the square root:



4. Simplify the rest:

5. Separate the solutions:

Thus, options B and C are the answers.
hope this helps!
Answer:
<h2>x = -8 or x = 2</h2>
Step-by-step explanation:

There’s are ratio which would be 8/10. 12/x should equally 8/10. So it would be 14 tiles long.
I think the wrong is the answer , I hope that help , good luck