Question

Please answer it fast ​

Answer 1

Answer:

(4m+5n)

Step-by-step explanation:

16m^2 + 40mn + 25n^2

= (4m)^2 + 2×4m×5n + (5n)^2

= (4m + 5n)^2

= (4m + 5n) (4n + 5n) / (5n + 4m)

= (4m + 5n)

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