Question

Buna .... cum se descompune : x2-x-6

Answer 1

x²  -x  -6  = x² - 4 -x -2 = ( x² - 4 ) - ( x+2 ) = ( x-2) · ( x+2)  - ( x+2 ) =
= ( x+2) ( x-2  -1 ) = ( x+2 ) ·( x -3)
6 = 4+2 = 2²    + 2 

Answer 2

$x2-x-6=x+x-x-6=\boxed{x-6}.$