Answer:
[tex]2z^{7})[/tex].
Step-by-step explanation:
Given : [tex]-3 z^{7} - ( -5 z^{7})[/tex]
To find : Select the correct difference.
Solution : we have given
[tex]-3 z^{7} - ( -5 z^{7})[/tex].
Open the parenthesis
[tex]-3 z^{7} + 5 z^{7})[/tex].
By the rule ( + - = -) .
[tex]2z^{7})[/tex].
Therefore, [tex]2z^{7})[/tex].
