Question

Question
Add the polynomial expressions 5z−2z^2−4z+5
and 6z^2+3−7z
.(1 point)
Responses

4z^2−6z+8
4 z squared minus 6 z plus 8

9z^2−11z+8
9 z squared minus 11 z plus 8

11z^2+z−2
11 z squared plus z minus 2

4z^2−z+8

Answer 1

Add like terms:

(5z − 2z^2 − 4z + 5) + (6z^2 + 3 − 7z)
= (−2z^2 + z + 5) + (6z^2 − 7z + 3)
= 4z^2 − 6z + 8.

Answer: 4z^2 − 6z + 8.