Math, asked by suman7bhartipb87ui, 1 year ago

factorise 81a^4-121a^2

Answers

Answered by BrainlyYuVa

2

Step-by-step explanation:

✏Factorise of, 81a⁴ -121a² ,

↪(81a⁴-121a²)

= (9a²)²-(11a)²

= (9a²-11a)(9a²+11a)

♠Uses formula .

a²-b²= (a+b)(a-b).

✏Hopes its helps u.

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