Respuesta :

Answer:

-48

Step-by-step explanation:

16 x 2 = 32

32 - 80 = -48

Answer:

x = −2.24 and x = 2.24

Step-by-step explanation:

Use quadratic formula.

Or use the steps given in this answer:

https://brainly.com/question/16919702?referrer=searchResults

Hope this helps!