(Simplify): (4m + 5n)² + (5m-4n)²
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please answer fast.
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solve using the formula of a+b whole square
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Answered by
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Answer:
16m2+25n2+40mn+25m2+16n2-40mn
=41m2+41n2
=41(m2 +n2)
Step-by-step explanation:
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