Factor 121x^2-36y^2

Asked by AnneS2 12 years ago 3/28/2013 5:37 AM

Last updated by anonymous 12 years ago 3/29/2013 12:13 PM

Answered by CherieS 12 years ago 3/29/2013 12:13 PM

121x2-36y2

121x2 -36y2

(11x )(11x ) ( -6y)( +6y)

(11x-6y)(11x+6y)

Factor:

(11x-6y)(11x+6y)

Check:

(11x-6y)(11x+6y)

(11x)(11x) (11x)(+6y) (-6y)(11x) (-6y)(+6y)

121x2 +66xy -66xy -36y2

121x2-36y2