Math, asked by pearl1030, 10 months ago

find the cube of 3a-1/a

Answers

Answered by ferdin

1

(3a-1/a)^3=(3a)^3-(1/a)^3-3a(1/a)(a-1/a)

=27a^3-27(1/a^3)-3(a-1/a)

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