SOLUTION: 5z^2 - 5z + 4 - (3z - 4)=

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Question 46692: 5z^2 - 5z + 4 - (3z - 4)=
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
5Z~2-5Z+4-(3Z-4)= 5Z~2-8Z+8
DON'T UNDERSTAND HOW YOU GOT 2Z~2-Z+4 F0R THIS PROBLEM WHEN YOU START WITH 5Z~2 AND THERE ARE NO OTHER Z~2 TERMS.
PLEASE EXPLAIN.