Question

(4m+5n)²+(5m+4n)²


a.16m2 + 40mn + 64n2


B
20m2 + 40mn + 21n2


C
41m2 + 80mn + 41n2


D
21m2 + 80mn + 14n2​

Answer 1

Answer:

so, the correct option is c

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Answer 2

Answer:$\boxed{C}$

Step-by-step explanation:

Step by step solution is in the given attachment

${41m}^{2} + 80mn + {41n}^{2}$