Question

Factorise :- X cube - 3 X sqr - 9X - 5​

Answer 1

Answer is in the follwing attachment.

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Answer 2

here is your answer

x^3-3x^2-9x-5

=x ^3+x^2 -4x^2-4x-5x-5

= x^2 (x+1)-4x (x+1)-5 (x+1)

=(x+1)(x^2-4x-5)

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