Factor and check: x^2 - 9x + 18 = 0

Asked by AnneS2 12 years ago 9/18/2013 9:10 AM

Last updated by anonymous 12 years ago 9/20/2013 11:59 AM

Answered by CherieS 12 years ago 9/20/2013 11:59 AM

x^2 - 9x + 18 = 0

(x )(x ) ( -6)( -3)=0

(x-6) (x-3) = 0

Check:

(x-6) (x-3) = 0

(x)(x) (x)(-3) (-6)(x) (-6)(-3)=0

x^2 -3x -6x +18=0

x^2 -9x +18=0