Math, asked by premlalwani, 1 year ago

Simplify (4m+ 5n)2 + ( 5m + 4n)2

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Answered by Aayush10102

7

Answer:

Step-by-step explanation:

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premlalwani: thank you bro

premlalwani: but why you have done 40mn

Aayush10102: (a+b)² = a²+b²+2ab

premlalwani: ok

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