Math, asked by 19077, 3 months ago

Factorise: 49a² - 70 ab + 25b²

Answers

Answered by Anonymous

4

49a² - 70ab + 25b²

(7a)² - 2×7a×5b + (5b)²

Using identity (a-b)² = a² - 2ab + b², we get

(7a - 5b)²

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