Math, asked by Edha92, 5 months ago

121a²–1=......................

Answers

Answered by shubhangiii

3

Answer:

a = +1/11 and - 1/11

Step-by-step explanation:

using identity (a²-b²) = (a+b)(a-b)

121a²–1

= (11a)² - 1²

= (11a-1)(11a+1)

Therefore, a = +1/11 and - 1/11

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