Math, asked by 64666, 1 month ago

factorise 441m^2-126mn+9n^2

Answers

Answered by pauljake3000

0

Answer:

135

Step-by-step explanation:

Answered by SuitabIeBoy

3

Answer :

⇒441m² - 126mn + 9n²

⇒(21m)² -2×21m×n + (3n)²

⇒(21m-3n)²

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