Math, asked by yuvraj99975, 10 months ago

factorise - 25a^2 - b^2 - 2ab

Answers

Answered by 217him217

3

Step-by-step explanation:

25a² - b² - 2ab

= (5a) ² - 2ab - b²

=> (5a) ² - 2ab + b² - 2b²

=> (5a-b) ² -8ab - 2b²

=> (5a-b) ² -2b(4a+b)

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