Question

Question
Add the polynomial expressions 5z−2z2−4z+5
and 6z2+3−7z
.(1 point)
Responses

4z2−6z+8
4 z squared minus 6 z plus 8

9z2−11z+8
9 z squared minus 11 z plus 8

11z2+z−2
11 z squared plus z minus 2

4z2−z+8

Answer 1

4z^2 − 6z + 8

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