Answer: I think it's the first one.
Step-by-step explanation:
Answer:
25n^8
Step-by-step explanation:
Area of a square is length×length
Length=5n^4
Area=5n^4×5n^4
=(5×5)(n^4+4)
=(25)(n^8)
=25n^8
So the area of a square is 25n^8
Y/a-b
Mark brainliest please
Hope this helps you
