vaanipala vaanipala

11-07-2020
Mathematics

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factorise x^-x-2.Please do it fast.

Respuesta :

TheAnimeGirl TheAnimeGirl

11-07-2020

Answer:

(x-2)(X+1)

Solution,

[tex] {x}^{2} - x - 2 \\ = {x}^{2} - (2 - 1)x - 2 \\ = {x}^{2} - 2x + x - 2 \\ = x(x - 2) + 1(x - 2) \\ = (x - 2)(x + 1)[/tex]

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