Question

(4m+5n) ^2) +(5m+4n^2)​

Answer 1

Solution:-

=> (4m+5n^2)+(5m+4n^2)

=> 4m+5n^2+5m+4n^2

=> 4m+5m+5n^2+4n^2

=> 9m+9n^2

=> 9(m+n^2)

Hope it helps you ✌️