Math, asked by vikivishohe30, 3 months ago

Evaluate:
(3m-4/5n)²

Answers

Answered by vineetdas16

1

Answer:

9m²+16/25n²-30mn

step by step explanation:

using identity (a-b)²= a²+b²-2ab

(3m)²+(-4/5n)²-2(3m)(5n)

9m²+16/25n²-30mn

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