Is this equivalent can you explain

Answer:
No it is not equivalent.
Step-by-step explanation:
5h + 2h² = 7h? [tex]Wrong[/tex]
5h + 2h² = 9h [tex]Correct[/tex]
Because in the equation 5h + 2h² = 7h the 2h² was not calculated yet.
[tex]- Question2Answer[/tex]