Math, asked by binny2812, 4 months ago

Factorise
4a^3-81a​

Answers

Answered by ad0308
8

Answer:

4a^3-81a

a(4a^2-81)

a[(2a)^2-(9)^2]

a[(2a-9)(2a+9)]

a(2a-9)(2a+9)

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