Factorize :- 25m²-40mn+16n²
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Step-by-step explanation:
25m^2 -40mn+16n^2
=(5m)^2 - 2×5m×4n+(4n)^2
=(5m-4n)^2 (a-b)2=a^2 +2×a×b+b^2
=(5m-4n)(5m-4n)
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