Factor and check: x^2 - 5x - 6 = 0

x^2 - 5x - 6 = 0

(x )(x ) ( -6)( +1)=0

(x-6) (x+1) = 0

Check:

(x-6) (x+1) = 0

(x)(x) (x)(1) (-6)(x) (-6)(1)=0

x^2 +1x -6x -6=0

x^2 -5x -6=0