(4m+5n)square+(5m+4n)square
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Step-by-step explanation:
Go through the above attached pic
Attachments:
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Answered by
0
Answer:
4m squ. +5n squ+20mn +5m squ. +4n squ.+20mn
this is your answer 9m squ.+9n squ. +40mn .
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