Factor and check x^2 - 20x + 100 = 0

Asked by AnneS2 12 years ago 8/4/2013 8:03 AM

Last updated by anonymous 12 years ago 8/5/2013 2:27 PM

Answered by CherieS 12 years ago 8/5/2013 2:27 PM

x^2 - 20x + 100 = 0

(x )(x ) ( -10)( -10)=0

(x-10)(x-10)=0

(x-10)^2 = 0

Check:

(x-10)(x-10)=0

(x)(x) (x)(-10) (-10)(x) (-10)(-10)

x^2 -10x -10x +100

x^2 -20x +100=0