Question

(4m + 5n)2 + (5m + 4n)?​

Answer 1

Step-by-step explanation:

first multiply 4m+5n to 2

then,

8m+10n+5m+4n

then ,

take same varible to one side

8m+5m+10n+4n=13m+4n

hence, its answer is 13m+4n

Answer 2

Answer

13m + 14n

Step - by step explanations.

First we multiply ,

(4m +5n)×2

Then,

= 8m+10n + 5m+4n

Then we add the same vibrable

= 8m +5m +10n + 4n

= 13m + 14 n ans.