Respuesta :

Cannot be factored

x² - 6x - 8

x² breaks down into x and x 
8 breaks down into 1 and 8, 2 and 4, 4 and 2, or 8 and 1.

(x+4)(x-2) = x² + 2x - 8
(x-4)(x+2) = x² - 2x - 8
(x-4)(x-2) = x² - 6x + 8
(x+4)(x+2) = x² + 6x + 8