Math, asked by 64666, 4 months ago

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

Answers

Answered by Darsh05

0

Answer:

Hey Mate!!

441m² - 126mn + 9n²

⇒ (21m)² - 2(21m)(3n) + (3n)² →[a² - 2ab + b² = (a - b)²]

⇒ (21m - 3n)²

⇒ (21m - 3n)(21m - 3n)

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